http://www.mahoodsculpture.com/sculptures-out-of-cans/
How to tell when your clay sculpture is ready to come out of the oven?
I made a clay sculpture, that you can bake in an oven, so I put it in there for 15 minutes right now, how do I know when It is done?
You follow the directions on the package which give time based on thickness, which you didn’t give – 15 hours ago.
Time lapse of Disney’s World-Record Sculpture of Canned Goods at Epcot