Two sets of good chopsticks (I don't recommend the cheap teriyaki/chinese type easy to break)
5 or 6 Rubber Bands (make sure they are good ones not warn out or it might snap)
A sharp knife (I use needle nose pliers to cut them perfectly)
A small flier for metal (Optional but high recommended for fine crafting)
P.S. Careful cutting it if your going to use needle nose pliers (lost almost half my hand to them)
Step 1: Collecting the Materials
Two sets of Chopsticks and 5-6 rubber bands.
P.S. I only have one set of chopsticks left and a few rubber bands XP.
Step 2: Cutting and Rounding them up
(Okay since the damn thing won't let me put notes on here I will tell you the cuts)
The 3 and a half inch is the handle
The 5 and a half inch is the barrel but you only need one of them so choose which one lives and which one is trash/recycle.
The 5 inch on the bottom is the body so that is needed critically.
Finally the 3 Inch is the trigger. at least 3 inches would be fine.
Step 3: Wrapping