I volunteered to make a worm bin for Max’s 4th grade class. The teacher gave me a plan from the
Seattle Tilth (PDF) and I followed it (with a few departures) using scrap wood, hoarded hardware and a sheet of plywood graciously donated by
Spaeth Heritage House Hardware in Philomath. The only casualty was my poor staple gun which died trying to tack hardware cloth to the underside. It will not be mourned or missed.