I made the incubator out of a styrofoam ice chest. I got some of the parts donated to me through a local internet group called freecycle, where people post stuff to give away rather than through in trash. I got the PC fan, the transformer, and the ice chest for free. I had some wire for the bottom. I bought the lamp kit and a hot water heater thermostat and a thermometer, wired it together and had a terrible time controlling the temperature. I ended up rearranging the light, fan, and thermostat several times. Changed different wattage light bulbs several times. I also bought an accurite thermometer/hydrometer and a springfield thermometer/hydrometer and after searching high and low found a water wiggler. I put so many holes in the styrofoam that I needed a roll of tape to patch it up from moving stuff around. I put a small window in the top. I calibrated the thermometers by doing the ice water test. The accurite is the most accurit. only .4* off. We have no Lowes or Home Depot around here so unfortunately the hot water heater thermostat was not very good(I think if I would have gotten one there it would have been better) Eventually a friend of mine gave me a used wafer thermostat for an incubator. Within 7 hours the temperature was holding steady enough that I decided to put the eggs in. I have the bator in a room with a vaporisor that is putting humidity into the room. The 3 hydrometers are reading 45%, 29%, and 39%. I guess that will do for now. The water wiggler is at 100.9* and subtracting .4* that would be 100.5*. The incubator cost about $20, the thermometers cost about $30 altogether thats $50. I will make another one but will probably put a shield on the light and run the fan blow right into the light and sponge area. There is one BYC members posted like that and I think that would help. I probably will need to make one soon with all that tape But it was a very good learning experience and all I need is a good box to transfer the parts. I will definetely make sure I have a decent thermostat next time. I put 5 banty mixed chicks(?) BO,Cochin, and Mille Fleur combo so who knows? Hopefully something will hatch!!!!