This project is potentially dangerous so you shouldn't attempt it if you don't have training on how to safely deal with electricity. I've always been interested in electronics and decided to make my own taser gauntlet / stun glove.
Hot glue gun
some sharp, short copper or brass screws
I completed this project in about 3 hours of work. I only had short sprints to work on it, so you see my clothes change a few times.