Spinning Fan Blades meet Megaphone
I had realized that all children are fascinated with the neat sound effects and voice sounds you get from speaking through a mega-phone (and its effects) and seperately a regular spinning fan to cool yourself off with. Besides all the other things you could place at the end of a mega-phone; I was thinking that the sounds and voices coming through a mega-phone would sound really cool if it passed through the mega-phone and then spinning fan blades for the effects. Kids would love it!
Different speeds, the other effects would alter and you could make some pretty freaky effects for something like a Halloween party or any other time you really want to freak someone out. "Luke... I am your Father!"
Reward: Free product or the proto-type... I will enscribe it myself.