Please note, the recipient of this shooter is an adult who respects fire. The following has none of the safeties/niceties you might expect from professional-grade equipment. I recommend you do NOT make this unless you are an adult with at least a smattering of common sense.
The idea was to make something he could hide up his sleeve to produce a flash effect at will without doing something as obvious as pressing a button. To activate the flash, he just has to raise his hand (which seems to be a natural movement if you're about to shoot fire from it).
- 1 single AA battery holder
- 1 mercury switch
- 1 slide switch
- 1 1.5V glow plug
- some Velcro
- about 4 " of 1/2" thin-walled aluminum tubing
- small piece of 1/4" plywood
- flash paper
- flash cotton
I got the tubing and glow plug at a local hobby store. The mercury switch came from Radio Shack about 20 years ago. The battery holder came from the Source. The slide switch came from a defunct Godzilla noisemaker. The flash paper and flash cotton came from the internet. The other stuff I had lying around.