I did make this bator from one of those red $18 igloo coolers from Walmart. The baskets are for breed ID, since it is the first hatch ever from the new coop, I want to make sure I know what the babies look like. I also went to the crafty section at Wamart and got the colored Velcro (the kind that sticks to itself ) so I can band their legs when it is time to transfer to the brooder. I cut them in half long ways then made little 1.5" long strips. I think I am ready to go.