Chris Notap is one of the few recreational mousetrap builders that I'm aware of. He shows of his whimsical, no-kill traps on his YouTube channel. Here's his latest, which uses a 3-inch diameter section of PVC pipe.
This is one of the best and easiest homemade humane rat/mouse traps! Easy to build, easy to bait, easy to release and best of all, it's humane and there's no springs or levers to wind up or load! The mouse, rat or vole cannot escape or chew his way out of this mouse trap. Mice and rats are not harmed in any way during capture. As a matter of fact, the mouse, rat or vole remains very calm since there is no slamming doors or snapping latches to scare them! Mice can be released calmly and easily without fear of getting bitten even by the most "fearful of mice" person!! Simple operation makes this diy homemade rat mouse trap fun and easy to build (great parent and kid project to learn about balance) and adjust for easy trapping and best of all easy release. Just use a dab of peanut butter to bait the trap. It's the best do it yourself homemade humane live release rat mouse trap you'll find! A 3" PVC pipe and a few other common items is all you'll need. I'll be building a humane squirrel trap next so you can capture and release squirrels easily too so subscribe and don't miss my upcoming "diy humane squirrel trap".