These guys have the blueprints! I remember back when I was guiding, and we made a similar trap, smearing the "pop can" with peanut butter, (the trick is to get the can balanced, pb and all, to spin easily). We caught 27 mice in one night in the old log cabin. Did'nt get much sleep, though, listening to the "pool party" they were having!
In another cabin up in the Missouri Breaks, the trouble was with pack rats....whole 'nother critter. Bucket traps won't work for them. We used a 22 pistol and flashlights all night. Not much sleep then either!