Man, that is SO cool! Fairly simple, yet oh-so-awesome! You could perhaps do something more to the "helmet".. you know.. to make the bucket more helmety. But dang, always a pleasure when someone comes up with something mindpokingly fun like this! Thanks for the inspiration! ^^ Gonna go home from work in an hour, pick up my brand new ultrasound-rangers and lasermodule from Sparkfun and totally geek out! B-D