Need a small project to try your new tools out on? This is a wooden box trap my granddad used to build us for catching small critters without hurting them. Sorry there is not a lot of detail - it's not really necessary as the design is pretty flexible. Be aware, these really work - if used check often - the family cat may get hungry.
(https://i35.photobucket.com/albums/d184/glennkangiser/boxtrap.jpg)