If anybody cares, you can ask the sporting goods department at wal-mart to save you a styrofoam box that the nightcrawlers come in. That's what I used to build my first incubator AND made a hatcher out of another one. They are huge, free, and have like 9 big circular indentions in the bottom that hold the worm cups that are great for your water and you don't have a pan of water in the way or taking up space.