This Flintlock Gun Papercraft model can be trigger and using rubber band as its ammo. Instruction is in English and comes with picture guide

Flintlock Gun Papercraft model is by Ray O’ Bannon from ravensblight.com

Requirements :

Scissors, Elmer’s glue (or a glue stick), a large utility knife (suitable for cutting cardboard), a needle, two toothpicks, a pen or pencil, tape (of any kind), some corrugated cardboard and an emery board (or fine sandpaper). A large black marker is useful but not essential.