What is the name of those chalk sculpture stores that you could paint on and buy afterward?
It used to be very popular with stores devoted to a variety of sculptures and paints for the hobbyist. There is a chain in California that fits your description called Petroglyph: http://www.petroglyph.com/ You can buy from the factory in NJ and paint at home PlasterCraft: http://www.plastercraft.com/ http://www.ceramicartspace.com/ceramics6… Hydrocal: http://www.google.com/search?