Picture of Simple non-lethal crossbow
This is my first instuctable, its on the crossbow, this is only a prototype so it is not lethal but you can change the amount of power by tightening the strings.

What you will need: 17 inch of hard wood, Bendable wood doesn't matter about the length, 19 inch of sting at first I used wire it was okay but now I use paracord, A handle I used a metal rod that fit into the hole in the wood, 6 inch of bendable thin metal, duct tape if you want it, drill if you have one but if not you can find a big screw and hammer it into the hard wood and that will be your handle.

Step 1: Handle

Picture of Handle
This step is pretty simple, if you have a drill find a comfortable and drill a hole to fit, if not find a big screw and hammer it into the hard wood, with mine there was already a hole so I just had to make the rod fit.
minijc1 year ago
how is it non lethal is there a special type of ammo and do you know how to make a sling shot non lethal.
Assassin Tube (author)  minijc1 year ago
It is not powerful enough for it to be lethal, but if you got a better front limb and string then it could have potential, if you want some really safe ammo then just take a stick or something similar and add some foam to the end, if you want lethal ammo then buy some carbon arrows with Broadheads and upgrade the limb and string.