Awesome Mouse Trap
It's a 5 gallon bucket half full of water. You take the normal handle off and bend a coat hanger to reach across the opening. Take a empty beer/pop can and drill a hole in the center of the bottom. Run the coat hanger through the pop can and hook it into the handle holes. Smear chunky peanut butter over the sides of the can. Set it in a dark corner of the room/shack and let it work.
Here's how it works:
The mice smell the peanut butter and go up the ramp to get it. They try ot reach out for the peanut butter and put their front paws on the can for balance. As soon as they put any pressure on the can spins, they lose their balance and fall into the water where they eventually drown.
No mess, easy to make and clean (dump out mice and water) and it keeps working even after you have caught one. Plus, it's fun to be sitting around telling hunting stories and hear splashes from the corner of the room :)