How do I make a simple fruiting chamber at home?

A clear storage tote works well. For a shotgun-style chamber, drill 6 mm holes spaced about 5 cm apart on all sides for passive air exchange, sit the block or tub on a raised rack over a layer of damp perlite, and mist a few times a day. A larger grow tent with a humidifier and a timer fan suits more blocks. The goal is high humidity with steady fresh air.