Tiny Catapults! by pariahcycle

How to Make a Coaxial Air Cannon by NightHawkInLight

Giant Trebuchet by Ganhaar

Make a desktop trebuchet by dustinandrews

Portable pumpkin catapult by meikj

30 Minute Desk Catapult (I made it at TechShop) by madaro

Backyard Ballistics by mikeasaurus

Hand Held Ballista by sphsengineering

Mini Siege Engines by WYE_Lance

Trebuchet business card - Trebucard by clide

Versatile Multi-shot Pneumatic Cannon by radicalnegative1

MouseTrap Catapult by JoshBar

How to Make a Trebuchet by howtowithmanish

Howitzer Potato Cannon by Flagella

Trebuchet of the large variety (a work in progress), 4.28… by StepsoftheSun

Cheap/Easy Rubber Band Powered Launcher! 100m+ by son of s8an

Popsicle-Stick Catapault by zjschafer

"The Insensible" - a counterweight trebuchet by squiggy2

Cardboard Trebuchet by sphsengineering

Mini Clothespin Catapult And Crossbow by vishalapr

The Curiously Strong Trebuchet: A Pocket Sized Medieval … by Ethanal

Launch It: Torsion Spring Catapult by i make shooting things

Pocket Catapult by MrF_DT_teacher

Quick-n-Dirty Trebuchet by SFHandyman

Easy Backyard Catapult for Hero Dads by bgepp1

Build A Net Gun by crispyjones

Scout Project: How to build a Trebuchet by Biggsy

Christmas Cannon by fungus amungus

How to Make a Medieval Trebuchet Out of Cardboard by ineverfinishanyth