See this blog about it. My fav is the Mouse in a Lightbulb. You've got a use for old lightbulbs--and if you get attached to rodents that invade your house, this is the perfect way to catch them without harming them.
It could be pretty genius--if it works, that is.
Have you tried it? Would you? Any other humane pest control ideas out there? What do you ahem do with the mouse once it's caught? isn't the point of catching it...to...err get "rid" of it?