I made the Play-Doh Dinosaur one afternoon in Honolulu.  I did enjoy fashioning the beast, but I did find that the Play-Doh went kind of sticky and slimy after extensive handling in warm weather, so perhaps it wasn't the best material to use.  I photographed it in natural daylight, using Kodak Gold 100ISO, and the negatives gave really rich, brilliant prints.  Some of this doesn't quite come through after scanning, and this is part of the reason I'll be sticking to chemicals for a while yet.