These links are helpful in getting children started in the molding and
casting process. Some sites here go beyond molding to project general
craft projects for rainy days.
1.
Getting
Started with Molding and CastingKids: don't try this without an adult helping out. Basic
training in molding and casting simple enough for kids with
adult supervision, of course.
2.
Make
Stuff for Kids Great
rainy day projects that includes some molding, too.