Adventure Time Costume Props for Halloween and Cosplay
Our Adventure Time props come in three sizes, because not all heroes (or villains) are built the same — and your accessories shouldn’t be either.
PETITE (Under 5 Feet)
- Sword: 17″
- Shield: 14″ diameter
- Guitar: 23″
Perfect for younger adventurers or lightweight trick-or-treating.
CONVENTIONAL (Cosplay-Con Ready)
- Sword: 23″
- Shield: 17″ diameter
- Guitar: 31″ — and it comes apart for easy travel!
This is our most popular size — made for conventions, costume parties, or casual multiverse mayhem.
X-LARGE (Epic Quest Size)
- Sword: 31″
- Shield: 23″ diameter
Built for bold cosplayers who like their props a little bigger and badder.
Choose Your Weapon (or Instrument of Doom)
Our collection includes iconic weapons and accessories from your favorite Adventure Time characters:
Swords:
- Finn’s Sword
- Demon Blood Sword
- Fionna’s Crystal Sword
- Scarlet Sword
- Night Sword
- Grass Sword
- Root Sword
Shields:
- Cake Shield
- Jake the Dog Shield
Guitars:
- Marceline’s Bass Axe
- Marshall Lee’s Guitar (cause why should vampires have all the fun?)
All props are made of lightweight wood — glued, pinned, and easy to carry so you’re not lugging a literal battle axe through a con hall.
Want to Save Gold? Go Unpainted
Feeling crafty? Choose any of our Adventure Time props unpainted and save serious coin. These come fully assembled with straps where needed — just add paint and you’re ready to roll.
This is a great option for:
- Budget-friendly cosplays
- DIY family costume projects
- Trick-or-treaters who want to customize their gear
Need painting tips?
Check out our full tutorial here:
DIY Prop Painting Guide
Shop unpainted Adventure Time props:
Shop Unpainted Props
Build a Costume Without Slipping on Banana Peels
Putting together your Adventure Time look doesn’t have to be algebraic-level complicated. Grab a tee, a backpack, some colorful socks, and one of our props, and you’re basically ready to defend the Treehouse or serenade the undead.
Need more simple tips?
Visit our blog:
Easy DIY Costume Ideas
Why Our Props Are Totally Mathematical
- Handmade from lightweight wood
- Glued, pinned, and ready to go
- Straps included where applicable
- Easy to carry for kids and adults
- Con-safe and travel-friendly
- Available painted or unpainted
- Built for cosplay, Halloween, or display
Our goal? Keep it fun, affordable, and con-ready — so you can focus on the fun part of being in character.
Halloween-Worthy Props for Trick-or-Treating and Costume Parties
Whether you’re gearing up for a spooky school parade or hitting the streets for candy with your squad, our Adventure Time props are the perfect Halloween add-on. From Finn’s sword to Marceline’s bass guitar, these lightweight wooden pieces are built to stand out and hold up through a night of trick-or-treating. PETITE sizes are ideal for kids, making them a safe and comfortable choice for younger fans, while the larger sizes let teens and adults take their Halloween costumes to mathematical new levels.
Want something a little darker? Go full vampire rockstar with our Marceline or Marshall Lee Axe Guitar. Just add fangs, a faux leather jacket, and dramatic makeup, and you’ve got yourself a Halloween showstopper. Whether you’re hitting a costume party or turning your driveway into the Land of Ooo, these props add just the right mix of spooky, fun, and Adventure Time flair.
Ready to Level Up Your Costume?
Whether you’re going as Finn, Fionna, Marceline, Marshall Lee, or just your own original Ooo creation, our props will help you make it amazing.
Ready to show off your new cosplay costume? Follow us on our Facebook page and post your pics….we would love to see them!