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21st Birthday Decorations & Supplies

It’s time to celebrate the big 21 in style with our fantastic range of 21st birthday decorations at Party Pieces! Turning 21 is a milestone that calls for an unforgettable celebration and we have all of the supplies and decorations you need to make it happen. 

Our collection of 21st birthday party supplies includes everything from vibrant balloons to elegant tableware. What’s more, you can add a special touch with a 21st birthday banner that is sure to set the tone for the festivities. 

Add an extra bit of sparkle to your celebration with our range of 21st birthday partyware and personalised 21st birthday banners. These banners are customizable with names, special messages or even photos and will certainly make your celebration stand out and memorable for years to come.

Browse our 21st birthday collection today and start planning the perfect party for a milestone that’s not to be missed!

51 products

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    • Accessories (1)
    • Balloons - Arches & Garlands (2)
    • Balloons - Bunches (1)
    • Balloons - Confetti (2)
    • Balloons - Latex (1)
    • Balloons - Milestone (3)
    • Cake Accessories - Toppers (2)
    • Catering - Food & Drink Stands (1)
    • Decoration Kits (1)
    • Decorations - Bunting & Garlands (4)
    • Food & Drink Stands (1)
    • Games & Activities - Photo Booth Props (1)
    • Party Bags & Boxes (1)
    • Personalised Banners (7)
    • Personalised Cakes (1)
    • Personalised Milestone Number Trios (5)
    • Personalised Milestone Trios (2)
    • Tableware - Cups (4)
    • Tableware - Napkins (4)
    • Tableware - Plates (4)
    • Tableware - Table Covers & Runners (2)
    • Trays & Platters (1)
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Gold Foil 'Twenty One' Paper Napkins (x16)
£3.99
£3.99
Gold & Nude 21st Birthday Latex Balloons (x6)
£3.99
£3.99
Create Your Own Birthday Banner - Gold
£9.99
£9.99
21st Birthday Black & Gold Sparkle Plates (x10)
£4.99
£4.99
21st Birthday Black & Gold Sparkle Napkins (x10)
£3.99
£3.99
21st Birthday Black & Gold Sparkle Cups (x10)
£3.99
£3.99
21st Birthday Black & Gold Sparkle Table Runner
£6.99
£6.99
Gold Glitter Acrylic '21' Cake Topper
£3.99
£3.99
21st Birthday Black & Gold Sparkle Latex Balloons (x8)
£3.99
£3.99
A bunch of metallic gold latex milestone party balloons with a number "21" on it
Milestone Birthday - Gold 21st Birthday Balloons (x5)
£2.99
£2.99
21st Birthday Rose Gold Paper Plates (x10)
£4.99
£4.99
21st Birthday Rose Gold Paper Cups (x10)
£3.99
£3.99
21st Birthday Rose Gold Paper Party Napkins (x10)
£3.99
£3.99
21st Birthday Rose Gold Party Table Runner (5m)
£6.99
£6.99
Rose Gold Acrylic Cake Topper - 21
£5.99
£5.99
21st Birthday Rose Gold Latex Balloons (x6)
£3.99
£3.99
Personalise Me!
Personalise Me!
Personalised Photo Cake - White & Gold Any Age Birthday
from £15.00
from £15.00
Personalise Me!
Personalise Me!
21st Birthday Balloons - Personalised Inflated Balloon Bouquet Rose Gold
£32.99
£32.99
Personalise Me!
Personalise Me!
21st Birthday Balloons - Personalised Inflated Balloon Bouquet Gold
£32.99
£32.99
Personalise Me!
Personalise Me!
21st Birthday Balloons - Personalised Inflated Balloon Bouquet Blue
£32.99
£32.99
Personalise Me!
Personalise Me!
21st Birthday Balloons - Personalised Inflated Balloon Bouquet Pink
£32.99
£32.99
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21st Birthday Balloons - Personalised Inflated Balloon Bouquet Rainbow
£32.99
£32.99
Personalise Me!
Personalise Me!
Personalised Inflated Balloon Bunch - Black & Gold Sparkle 21st Birthday
£29.99
£29.99
Personalise Me!
Personalise Me!
Personalised Inflated Balloon Bunch - Pink & Gold Dots 21st Birthday
£29.99
£29.99
Personalise Me!
Personalise Me!
Rose Gold 21st Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
Black & Gold 21st Birthday Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
Gold 21st Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
White & Gold 21st Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
Gold Celebration 21st Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
Iridescent 21st Personalised Party Banner
£14.99
£14.99
Personalise Me!
Personalise Me!
Pink Celebration 21st Personalised Party Banner
£14.99
£14.99
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Personalised Happy Birthday Polaroid Frame Kit
£18.99
£18.99
Party Pieces Collection
Assorted Metallics - Foiled and Glitter Bunting
£6.00
£6.00
Party Pieces Collection
Personalise Me!
Personalise Me!
Personalised Happy Birthday Banner and Stickers Set
£12.00
£12.00
Gold Happy Birthday To You Banner - Double Layered
£5.99
£5.99
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Gold Happy Birthday Confetti Balloon (x5)
£3.99
£3.99
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Gold Confetti Balloons (x5)
£3.99
£3.99
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Metallic Gold & White Decoration Set
£24.99
£24.99
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Metallic Balloon Bundle
£11.99
£11.99
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Rose Gold Foiled Party Bags (x5)
£7.99
£7.99
Gold Paper Trays (x4)
£8.99
£8.99
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Food Cones Treat Stand
£19.99
£19.99
Gold Prosecco Wall
£19.99
£19.99
Happy Birthday Black & Gold Party Napkins (x10)
£3.99
£3.99
Happy Birthday Black & Gold Plates (x10)
£4.99
£4.99
Happy Birthday Black & Gold Sparkle Cups (x10)
£3.99
£3.99
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Gold 'Let's Party' Paper Plates (x8)
£3.99
£3.99
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Coming Soon
Gold Striped Paper Cups (x8)
£3.99
£3.99

Personalised Balloons

Personalised Banners

Personalised Cakes