American Art Clay Co Inc
Sculptamold

4 Pound Box
Walthers Part # 126-41819M, p. 316 Walthers 2012 HO Scale Reference
A scale, $13.79, currently in stock at Walthers

 
White nontoxic powder material mixes with water, sets in 30 minutes without shrinking. Clings to most clean surfaces and can be applied over forms without cracking. Finished material is lightweight yet durable. May be cut, carved, sawed or sanded.