Brilliant 21st Birthday Party Supplies

Turning 21 is more fun with Brilliant 21st Birthday Party Supplies. Featuring a variety of bright and bold colors, these adult birthday party supplies are great for both ladies and gents. With 21st birthday invitations, tableware, party decorations, and more, we have everything you need to throw a 21st birthday they can't forget!

Let friends and family know who's finally legal with 21st birthday invitations. The birthday boy or girl will feel extra special when they see the personalized banner and invitations made just for them! You even can customize the invites to include their name and a picture!

This party is 21 years in the making, so make it pop with color as you pop some bottles. Whether you're decorating the whole bar or the party room, a decorating kit is a must! Hang a 21st birthday banner and matching swirl decorations to let everyone know what milestone you're celebrating. The prismatic detailing on these 21st birthday decorations makes the party room shine almost as bright as the big 21-year-old. Round out the party decor with solid color streamers, balloons, and paper lanterns.

All eyes are on your friend when they don a light-up 21st birthday tiara and flashing necklace. With everything from party hats and headbands, to necklaces and buttons, you're sure to find some fun 21st birthday accessories that suit your bestie's personality. They might even get a few free drinks while wearing a 21st birthday sash!

Now that the decorations are in place, let the festivities begin. Your bestie can say cheers to 21 years in any shape or size cup their heart desires! Let them sip their first legal drink out of a 21st birthday martini glass, yard glass, goblet, or even a 21st birthday shot glass necklace. The matching plates and napkins are printed with a burst of colorful confetti and streamer detailing.

No party is complete without presents. Check out the variety of 21st birthday gag gifts and games below. With all of these Brilliant 21st Birthday Party Supplies, you can make their 21st birthday unforgettable (maybe just a little fuzzy)!

Party Kits

Brilliant 21st Birthday Party Kit for 32 Guests
SKU:732874
$69.99
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Tableware

Brilliant 21st Birthday Dessert Plates 8ct
7in Paper Plates
SKU:660413
50% Off MSRP: $4.85
Our Price: $2.42
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Brilliant Birthday Dessert Plates 8ct
7in Paper Plates
SKU:660412
50% Off MSRP: $4.85
Our Price: $2.42
Qty -+
Brilliant Birthday Lunch Plates 8ct
9in Paper Plates
SKU:660411
50% Off MSRP: $6.30
Our Price: $3.15
Qty -+
Brilliant 21st Birthday Beverage Napkins 16ct
5in x 5in Paper Napkins
SKU:660416
50% Off MSRP: $3.50
Our Price: $1.75
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Brilliant Birthday Beverage Napkins 16ct
5in x 5in Paper Napkins
SKU:660415
50% Off MSRP: $3.50
Our Price: $1.75
Qty -+
Brilliant Birthday Lunch Napkins 16ct
6 1/2in x 6 1/2in Paper Napkins
SKU:660414
50% Off MSRP: $4.35
Our Price: $2.17
Qty -+
Brilliant Birthday Table Cover
54in x 102in Plastic Table Cover
SKU:660417
50% Off MSRP: $6.90
Our Price: $3.45
Qty -+
Brilliant 21st Birthday Plastic Cups 25ct
16oz Plastic Cups
SKU:660427
$4.99
Qty -+
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Novelty Drinkware

Save Water Drink Booze Flexible Flask
14oz Plastic Flask
SKU:660450
$2.99
Qty -+
21st Birthday Yard Glass
16oz Plastic Cup
SKU:660445
$2.99
Qty -+
Jewel Tone 21st Birthday Shot Glasses 40ct
2oz Plastic Cups
SKU:660428
$4.99
Qty -+
Brilliant 21st Birthday Flask
6oz Stainless Steel Flask
SKU:660434
$5.99
Qty -+
Brilliant 21st Birthday Shot Glass Holder
10in x 21in Foam Stand
SKU:660435
$5.99
Qty -+
Funny 21st Birthday Shot Glasses 6ct
1.5oz Plastic Cups
SKU:660431
$6.99
Qty -+
Black 21st Birthday Goblet
26oz Plastic Cup
SKU:660430
$7.99
Qty -+
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Cutlery

Black Premium Plastic Forks 20ct
7 1/4in Plastic Forks
SKU:66418
$2.69
Qty -+
Black Premium Plastic Knives 20ct
8in Plastic Knives
SKU:66419
$2.69
Qty -+
Black Premium Plastic Spoons 20ct
6 3/4in Plastic Spoons
SKU:66420
$2.69
Qty -+
Black Premium Plastic Cutlery Set 24ct
Cutlery for 8 Guests
SKU:113860
$2.99
Qty -+
Black Plastic Cutlery Set 210ct
Cutlery for 70 Guests
SKU:181701
$9.99
Qty -+
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Invitations

Custom Brilliant 21st Birthday Invitation
As low as $0.90 each
SKU:667592
$10 off custom products with any $75 purchase using code INSCRIBE
See Price List
Add to Basket to Customize
Custom Brilliant 21st Birthday Photo Invitation
As low as $0.90 each
SKU:667593
$10 off custom products with any $75 purchase using code INSCRIBE
See Price List
Add to Basket to Customize
Custom Brilliant 21st Birthday Thank You Note
As low as $1.00 each
SKU:667648
$10 off custom products with any $75 purchase using code INSCRIBE
See Price List
Add to Basket to Customize
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Decorations

Custom Brilliant 21st Birthday Banner
As low as $19.99
SKU:667693
$10 off custom products with any $75 purchase using code INSCRIBE
See Price List
Add to Basket to Customize
Custom Brilliant 21st Birthday Photo Banner
As low as $19.99
SKU:667694
$10 off custom products with any $75 purchase using code INSCRIBE
See Price List
Add to Basket to Customize
Brilliant 21st Birthday Banner
65in x 33 1/2in Plastic Decoration
SKU:660421
$3.99
Qty -+
Brilliant 21st Birthday Banners 2ct
Cardstock Decorations
SKU:660420
$6.99
Qty -+
21st Birthday Warning Tape
3in x 45ft Plastic Decoration
SKU:660423
$3.99
Qty -+
Prismatic Black & White Happy Birthday Letter Banner
7 3/4ft Cardstock Decoration
SKU:633106
$4.99
Qty -+
Brilliant 21st Birthday Room Decorating Kit 10pc
Cardstock & Paper Decorations
SKU:660418
$9.99
Qty -+
Brilliant Birthday Decorating Kit with Balloons
SKU:732898
$34.99
Qty -+
Brilliant 21st Birthday Confetti 1.2oz
1.2oz Confetti
SKU:662461
$2.99
Qty -+
Brilliant 21st Birthday Spray Centerpiece
2 3/4in x 18in Cardstock & Foil Decoration
SKU:660422
$4.99
Qty -+
Brilliant 21st Birthday Swirl Decorations 12ct
Cardstock & Foil Decorations
SKU:660419
$5.99
Qty -+
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Balloons

Brilliant Birthday Balloon
18in Foil Balloon
SKU:689295
Save 10% off balloons with purchase of a helium tank
$2.99
Qty -+
Brilliant 21st Birthday Balloon
18in Foil Balloon
SKU:690527
Save 10% off balloons with purchase of a helium tank
$2.99
Qty -+
Brilliant Birthday Balloon - Cubez
15in Foil Balloon
SKU:688698
Save 10% off balloons with purchase of a helium tank
$5.99
Qty -+
Giant Brilliant Stars Birthday Balloon
31in x 28in Foil Balloon
SKU:733895
Save 10% off balloons with purchase of a helium tank
$9.99
Qty -+
Giant Silver Number 1 Balloon
13in x 34in Foil Balloon
SKU:552219
Save 10% off balloons with purchase of a helium tank
$9.99
Qty -+
Brilliant 21st Birthday Balloon Bouquet 5pc
Foil Balloons
SKU:661086
Save 10% off balloons with purchase of a helium tank
$16.99
Qty -+
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Helium Tanks

Small Helium Tank 8.9cu ft
Ground Shipping Only
SKU:633299
Save 10% off balloons with purchase of a helium tank
$44.99
Qty -+
Large Helium/Air Tank 14.9 cu ft
Ground Shipping Only
SKU:633298
Save 10% off balloons with purchase of a helium tank
$54.99
Qty -+
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Balloon Accessories

Black Foil Balloon Weight 6oz
SKU:165937
$1.99
Qty -+
Black Curling Ribbon
350yds Ribbon
SKU:70183
$2.99
Qty -+
Plastic Balloon Clips 144ct
SKU:14131
$3.99
Qty -+
Balloon Pump
SKU:193
$4.99
Qty -+
Balloon Drop Bag
SKU:2594
$7.99
Qty -+
LED Balloon Lights 12ct
SKU:412618
$9.99
Qty -+
Hi-Float Balloon Treatment
SKU:89075
$15.99
Qty -+
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Solid Color Balloons

Black Round Balloon
17in Foil Balloon
SKU:60618
Save 10% off balloons with purchase of a helium tank
$1.99
Qty -+
Black Star Balloon
19in Foil Balloon
SKU:60619
Save 10% off balloons with purchase of a helium tank
$1.99
Qty -+
Black Pearl Balloons 15ct
12in Latex Balloons
SKU:632396
Save 10% off balloons with purchase of a helium tank
$3.99
Qty -+
Black Pearl Balloons 72ct
12in Latex Balloons
SKU:237858
Save 10% off balloons with purchase of a helium tank
$8.99
Qty -+
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Wearables

Silver 21st Birthday Fedora
8 1/2in x 10 1/2in Fabric Accessory
SKU:660442
$9.99
Qty -+
Beer Mug Hat
Foam & Polyester Hat
SKU:185796
$14.99
Out of Stock
21st Birthday Beer Sunglasses
6 1/2in x 4in Plastic Accessory
SKU:660447
$6.99
Qty -+
Beer Bottle Sunglasses
6in x 7 1/2in Plastic Accessory
SKU:404432
$6.99
Qty -+
21 Shot Glass Sun-Stache
SKU:545295
$6.99
Qty -+
Beer Mug 21st Birthday Shot Glass Necklace
SKU:218400
$1.99
Qty -+
Drinking Game Dare Necklace
34in Plastic Accessory
SKU:662465
$2.99
Qty -+
Prismatic 21st Birthday Pendant Bead Necklace
30in Plastic Accessory
SKU:660424
$3.99
Qty -+
Light-Up 21st Birthday Pendant Bead Necklace
34in Plastic Accessory
SKU:662466
$5.99
Qty -+
21st Birthday Survival Kit 7pc
SKU:662463
$9.99
Qty -+
Cannot ship to CA
21st Birthday Accessory Kit 6pc
Plastic & Cardstock Accessories
SKU:660426
$9.99
Qty -+
Light-Up Beer Mug 21st Birthday Button
1 3/4in x 2 1/4in Plastic Accessory
SKU:660437
$3.99
Qty -+
Birthday Light Up Button
SKU:404429
Was: $3.99
Now: $2.00
Qty -+
Light-Up Brilliant 21st Birthday Button
2 1/4in Plastic Accessory
SKU:662462
$3.99
Qty -+
21st Birthday Award Ribbon
3in x 5 7/8in Fabric & Plastic Accessory
SKU:660441
$3.99
Qty -+
21st Birthday Shot Glass Suspenders
SKU:660439
$9.99
Qty -+
21st Birthday T-Shirt
SKU:662467
$9.99
Qty -+
Cannot ship to CA
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Games & Activities

Funny 21st Birthday Stickers 12ct
12 Stickers
SKU:660449
$0.99
Qty -+
21st Birthday Pong Balls 6ct
SKU:662464
$3.99
Qty -+
Have You Ever Game
2 or More Players
SKU:660436
$3.99
Qty -+
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Confetti Poppers & Noisemakers

Confetti Party Poppers 12ct
Tissue Paper Confetti
Ground Shipping Only
SKU:13810
$2.99
Qty -+
Rainbow Tissue Paper Confetti Rolls 4ct
Tissue Paper Confetti
SKU:625478
$3.99
Qty -+
Black Confetti Party Poppers 3ct
Foil Confetti
SKU:625474
$3.99
Qty -+
Purple Flutter Tissue Paper Confetti Wands 6ct
Tissue Paper Confetti
SKU:457391
$4.99
Qty -+
Giant Black, Gold & Silver Confetti Cannon
2in x 23in Foil & Tissue Paper Confetti Cannon
SKU:701866
$6.99
Qty -+
Prismatic Black & White Squawker Blowouts 8ct
3 3/4in Foil & Plastic Noisemakers
SKU:633110
$2.99
Black & White Fringe Blowouts 8ct
7 1/2in Cardstock & Foil Blowouts
SKU:633109
$3.99
Qty -+
Black & White Fringe Squawkers 30ct
6 3/4in Foil & Plastic Noisemakers
SKU:633112
$5.99
Qty -+
Black & White Horns & Blowouts 50ct
SKU:633111
$14.99
Qty -+
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Cake & Cupcake Supplies

Black Baking Cups 75ct
2in Paper Baking Cups
SKU:609068
$1.99
Qty -+
Mini Black Baking Cups 100ct
1 1/4in Paper Baking Cups
SKU:609090
$1.99
Qty -+
Black Cupcake Stand
11 1/2in x 11 3/4in Cardboard Stand
SKU:609115
$7.99
Qty -+
Silver Wire Cupcake Stand
9 1/2in x 8 1/2in Metal Stand
SKU:655369
$14.99
Qty -+
12 Cup Non-Stick Mini Cupcake Pan
11in x 7 3/4in Steel Pan
SKU:184021
$5.99
Qty -+
12 Cup Non-Stick Cupcake Pan
14 1/2in x 14 1/4in Steel Pan
SKU:184022
$6.99
Qty -+
Large Non-Stick Round Cake Pan
12in x 2in Metal Pan
SKU:5093
$9.99
Qty -+
Non-Stick Large Cupcake Pan
15 1/2in x 8 1/4in Aluminum Pan
SKU:440301
$29.99
Qty -+
Black Icing Tube 4.25oz
SKU:5127
$1.99
Qty -+
Black Sparkle Gel 3.5oz
SKU:408126
$2.99
Qty -+
Black Color Mist
Ground Shipping Only
SKU:251353
$3.79
Qty -+
Rainbow Nonpareils 7.5oz
SKU:184017
$4.99
Qty -+
Black Candy Melts
10oz Net Wt.
SKU:488866
$3.49
Qty -+
Lollipop Sticks 100ct
6in Paper Sticks
SKU:593428
$4.99
Qty -+
White Lollipop Stand
10in 2 1/2in Plastic Stand
SKU:592933
$5.99
Qty -+
Mini Cake Pop Maker
Makes 1 1/4in Cake Pops
SKU:623810
ONLINE ONLY
$14.99
Qty -+
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Birthday Candles

Glitter Black Number 1 Birthday Candle
2 1/4in x 3 1/4in Wax Candle
SKU:710420
$1.79
Qty -+
Glitter Red Outline Number 21 Birthday Candle
2 1/4in x 2 3/8in Wax Candle
SKU:180265
$1.99
Qty -+
21st Birthday Bottle Topper Candle Holder
SKU:660425
$3.99
Qty -+
Glitter Black Twenty-One Birthday Toothpick Candles 9ct
4in Plastic & Wax Candles
SKU:710392
$4.99
Qty -+
White Spiral Birthday Candles 24ct
2 1/2in Wax Candles
SKU:65321
$0.99
Qty -+
Glitter Black Birthday Candles 24ct
3 1/4in Wax Candles
SKU:710447
$1.79
Qty -+
Tall Black Birthday Candles 12ct
1/4in x 5in Wax Candles
SKU:180259
$2.69
Qty -+
Tall Black & White Sparkler Birthday Candles 18ct
7in Wax Candles
SKU:586053
$2.69
Qty -+