I've been scouring the thrift stores and driving around town on big trash day (I got foam board insulation! score!) gathering materials to make a home made incubator. One of the things I found (Haven't bought it yet, thought I'd check with y'all before i spent money) was a 70's heated serving tray. Like this, only avocado green: What do y'all think about using something like this as a heat source. What if I took it apart? Does anybody know what kind of wattage it'd draw? Should I just stick with the light bulb heat source? I wouldn't set the eggs directly on top of it of course, and I have a thermostat to regulate the temperature.