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Depending on how serious of a gamer you are, or how much you use a pc you could even have a wrist band that charges with movement. I think this is 100% possible but now a days people can only envision optical mice. You would probably go back to mechanical. have a small motor on the 2 axis. The idea of rollers along the sides sounds good but would require bulk to collect it. There are ways also to capture static electricity as well. I have been playing with this idea a few days now. Clicking can create power, wheel mouse up and down. etc. I think you could at least very significantly extend the life of a wireless mouse.
why not just cut a bill sized piece of can and slip it on the outermost part of my wallet where bills go....?
Oh yea6) Maybe get like a pressure release valve thingie. at X amount PSI ....
As far as this failing, exploding and injuring and killing you....1) Id imagine if you are using various chemicals, explosives are int he least stuff that heats up, it will affect and compromise it. 2) id also say, I personally would let all air out when not in use so it doesnt expand and contract, and keep moisture out of it for the same reason.3) maybe spray it with some UV resistant spray if you are going to use it outdoors? I saw a discussion about pvc bows (like a bow and arrow)4) maybe consider wrapping it, like shrink wrapping it 5) maybe make a guard, like something around it, with a little space even lined with something like old mouse pad material.