I have nearly finished my home made bator - thanks MissPrissy and Oletimegator! My only question is : What else can I use to plug the vent holes besides old wine corks? I don't have any of those (maybe I need to drink more) I guess I have a 2nd question - how do I attach the fan to the side and does it need space behind it to draw air in? I am using a plastic rubbermaid cooler. All I have left is to drill the vent holes, tweak the hardware cloth and get the thermostat set at the right temp - it turned off at 105 so I turned it down and now it is down to 97. I wish they had more precise marks on the dial That's a big space between 90 and 125 degrees!