[FreePaul]

I didn't see anything on the list that couldn't be made at home by most teenagers. The "electric shock devices" might take a trip to Radio Shack or an electronics supply store but no problem for one who is determined.

I made knives, replica firearms (and a couple of real firearms), sling shots (including a two man monster) and a cross bow before I was fifteen years old. I also made some shocking devices although that wasn't my intent.

[ncountylee]

"electric shock devices"

Hit the junk yard for ignition coils. We bought them for $2.00 and got a nice 20k volt jolt from 12 volts in dry cells.

[Roccus]

In the late 50's I made a crossbow from a leaf spring of a 49 Ford. When I sent a bolt through the garage door my father put a swift and lasting end to my weapons manufacturing efforts.