Fire Piston Fun (designs/the making of and playing with fire pistons)

First of all let me preface this by saying that there's no way I would want to rely on a fire piston as my only source of making fire in a survival situation, there are lots of more efficient/consistent ways of making fire. Still I think they're cool, if nothing else for a science illustration, demonstration/conversation piece. I first learned of them here and thought to myself I need to make one of those someday. Another thread here inspired me to give making one a go recently and I've had...

Fire Piston Fun (designs/the making of and playing with fire pistons)