Does anyone know how to make a homemade incubator? I tried to make one and I had lost 2 sets of eggs am I doing something wrong? They would get about 2 weeks in and they would all just die. I can't afford an incubator brand new or used. My handmade incubator is made of a styrofoam cooler I followed the instructions and even put extra holes in it but the temperature gets too high that's how my first set of eggs died they technically boiled in the incubator. So now if I'm going to use the incubator I leave the egg incubator open not all the way I just prop one side of the incubator up. Should I put more holes in it and a fan, or what?