21st Birthday Gifts
Lost Treasures:
Sometimes the coolest gifts are the ones you can't find on the first page. These are our lost treasures, hidden gems that are just waiting to be discovered by you!
Welcome to the 21st Birthday Gifts Department
CoolThings Australia makes the experience of selecting memoriable gifts to give family and friends fun! Our wide range of 21st Birthday Gifts are unique, fun and creative. We love to bring the coolest gifts to gift givers who are shopping for 21 year olds. Our cool gifts are also an ideal birthday gift, Christmas gift or just a fun present idea! Browse the personally curated range above.
Also check out the great range of iconic collectables from the Star Wars, Marvel, Doctor Who, Harry Potter and many other universes!
Best 21st Birthday Gifts In 2026
We've collated a most popular list of the coolest gifts for 21 year olds this year. As voted by cool gift givers like you! This list contains the all time favourite 21st Birthday Gifts that we've shipped all over Australia.
1. Duncan - The Drinking Bird
Duncan the Drinking Bird is a fun desktop companion and classic novelty item. Fill a glass with cold water and submerge his head in the water getting it co...
2. Magnetic Sand Timer
Whilst your normal hour glass lets the grains of sand flow and rest at the bottom, your Magnetic Sand Timer creates quite a different picture and can creat...
3. Astronaut Ice Cream
Take your taste buds on an adventure with all new Astronaut Ice Cream. This official NASA approved Ice Cream is a handy light snack for taking into orb...
4. Astronaut Ice Cream 5 Pack
With this awesome Astronaut Ice Cream 5 Pack you get five packets of rich creamy vanilla freeze dried ice cream....
5. 100 Disgusting Poo Jokes
The 100 Disgusting Poo Jokes book packs 100 revoltingly funny jokes that work well for kids, teens, and adults who enjoy a good giggle at the gross stuff....
6. Cube Puzzler Go
Introducing the Cube Puzzler Go, a multi-level brain-teaser that puts your logic skills to the test....
7. Da Vinci Ornithopter
With this Da Vinci Ornithopter you'll put your skills to the test, the Da Vinci Ornithopter is a build-it-yourself working recreation of one of Leonardo Da...
8. Stab It Syringe Pen
a fun accessory for a doctor, nurse, surgeon or scientist, these classic pens feature red or blue liquid, realistic detailing, black writing ink....
9. The Fart Button
With 10 fart noises and accompanying explanations, The Fart Button is full of hilarious, low-maturity sound effects....
10. The NO Button
The designers of the NO Button are parents who like you seemed to be repeating the same things to their kids over and over. They dreamt of a button that wo...
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