John (aka WolfBlue): Dude... You need to build a projector!
Seriously, with your skills, it should be a snap! The adjustable-focus blue ray module you built was awesome. (For those here that didn't see it, it had a keyswitch, a power-on delay with audible alarm before lasing, a power-adjust knob and a focus-adjust knob, all mounted in a custom aluminum housing. Very nice!) The servo-controlled focus adjustment is a unique feature I've never seen before. Very cool! Sure hope your son wasn't too bored at the event...