The best mouse trap I made is similar to the one shown above. Take a bucket, put a wire through a soda can the long way so it goes from the center of the bottom to the center of the top (don't put it through the openning where you drank) and attach the wire from one side of the bucket to the other so that the can can spin. (like the jar in the above picture.) Put peanut butter on two of the rounded sides of can opposite of each other so that it is weight balanced, some water in bottom, and ramp going up the side of bucket to end of wire. The mice climb the ramp and try to cross the wire to the can with peanut butter on it. The can spins, the mouse falls in the water and either drowns if deep enough or cant jump out if it's only an inch or so. The trap reloads itself. I caught 6 mice the first night I used it, 4 the second, 2 the third and no more mouse problem. Got the idea from Maxim magazine. It is a great trap for a barn, garage or warehouse where you want to leave it a while.