If you don't have alot of money, there are ways to build an incubator out of other peoples trash. Here's some ideas that I found and welcome anyone elses ideas to help make a free incubator. First is a heater. I found that a small element from a discarded electric stove is perfect when wired to 130 volts VS the required 220 volts. This produces half of the heat of what was normally designed. Second is the thermostat to control the heat. An old electric water heater had two electronic thermostats on every one to control this. Just check the temperature rating before using these. Most are rated from 90 degrees to 170 degrees and are adjustable. You will need to adjust the temperature according to your finds and basic size of your insulated incubator which an old refrigerator is the best because it is already made to retain a steady temperature. Forced air incubation has many options too since there are many things that have fans. You will need to need a big enough fan to circulate the air according to the size of your free bator. I have yet to find a throw away system for a good automatic turner. An old turner motor from a grill is great but I can't find a good timer to turn them on a regular basis.