Sometimes you need to create something that do nothing more than amuses you. This insides are mostly for show. Just parts I had in my junque drawer. The HV transformer is a generic one that can be found on most online shopping site. They're advertised as 400KV but I only measured 12KV sustained.

Safety 3rd!
The circuit requires both N.O. switches to be press simultaneously. I positioned so the user's fingers or hand shouldn't be placed in the circuit. Otherwise they might drop it and break it.

Don't worry this puts out plenty of wide band RF noise. Enough to glitch a nearby Raspberry Pi.