I have done a bit of pre-fab modeling over the years - the sweet & fast method- using foam as the structure - you will need a old model railroad transformer - or other reostat to adjust electric flow - into the wire - use Nicrom wire - get that at Radio Shack - This Video delivers a nice over view of what you need to do a foam model- and there is further info below - ENJOY - More info here at - SCIENCE TOY MAKER http://www.sciencetoymaker.org/airSurfKit/HotWireCutFoam.htm. COM