Perhaps you want your insect to be very still so you can paint codes onto it or so that you can make it magnetic. Maybe you want to reduce the injury to your cockroach during very delicate cyborg surgery.
Whatever the reason, here's a way to get a device that's
- inexpensive ($30)
- Fast acting (some insects fall asleep in a second or two)
- Safer than some methods (some other successful methods include dipping your insect in ice water, or putting in the freezer, but I have had less luck not accidentally killing them with those ways).
In short, it's just a small paintball C02 can modified with a on-off- valve.
For the purposes of demonstrating how docile you can make your subjects, I will also show in this instructable how to graffiti tag a bee.