04-01-2014, 06:31 PM
Last year I cover some large doll faces with Crayola Model Magic clay, turning them into witches. After the clay dried out, it shrunk and cracked which turned out good since these were witches; then I spray painted them green.
The new witches sat in my basement awaiting the arrival of the big day in Halloween without any issues, but when exposed to the weather, they didn't fair so well.
After about a week, the clay started falling off in chunks. Any suggestions on how to prep the...