I lost the url but there was this museum where you shoot this at pictures of arms (covered with mitts, rings, boxing gloves, etc) to see which one is warmest. I'm sure we could do something similar. Amazon's price is pretty cheap:
http://www.amazon.com/Black-Decker-TLD100-Thermal-Detector/dp/B001LMTW2S/ref=sr_1_2?ie=UTF8&qid=1303753057&sr=8-2
[Alison]
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