Spanish industrial designer Roger Arquer used every day objects like drinking glass, bottles, and metal springs (with bits of cheese as bait, of course!) to create clever non-lethal mousetraps.
Perfect for those who want a DIY non-kill traps, though I wouldn't reuse that drinking glass... Link | Roger's website [Flash, navigate to Work > Product > Icon that looks like a sideways bottle] - via Boing Boing
Anyway, I have a great, if decidedly lethal, mouse trap in my cat. She left me another gift on the bathroom floor this afternoon.
He had a 5 gallon bucket with a wire handle. the handle had a plastic holder part that could spin like this: http://www.bewellhydroponics.com/catalog/images/5GALLON-bucket.jpg
He'd put some food in the bottom of the bucket, smear peanut butter on the handle, and place a small board up the side of the bucket as a ramp.
The mice would jump for the peanut butter, the handle would roll and drop them in the bottom, and they'd be there a week later for him to release.