When I was at Goodwill donating some items, this girl was throwing away this styrofoam cooler. All I thought of was Miss Prissy's incubator. I asked her if I could have it. Why I don't know. Too many enablers on this site. So now I have a box with no lid. My husband asked me why I brought a cooler home and I told him WE were going to build an incubator. He laughed and said you kidding right, even though he knew I wasn't kidding about this. I have said for a while now that I've wanted to build one. So he went to his garage and got all the parts we needed except for a lid and the water heater themostat. I went to Home Depot and pick up a themostat and a piece of glass to use as a lid. The hardware cloth I had, the squares where too big for chicks, so I bought a piece of plastic gutter guard for $1.80 and cut it to fit on the bottom. I put in a flexible tube through the side with a large syringe attached to put water in the dish underneath the floor, (can't see that). I got the pc fan and light all hook up and we are ready to go. I do keep a towel over the glass. It help keeps the warm air in. We decided to cut a square out of the side to use for turning the eggs. This way I don't have to open the glass and let all the warm air and humidity out. I am testing some bantam cochin buff brahma eggs to see if our young rooster is fertile.