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Here's another flour-free dough.
Mix 1 cup of salt, 1/2 cup cornstarch and 1/2 cup boiling water in pan.
Cook over low heat, stirring constantly, until mixture is too stiff to
stir.  When cool, knead until smooth.

I haven't made this in years, so don't remember if it hardens on its own,
has to be baked, or what.  I think I have those directions at school.  If
you want to know, email me and I'll respond after I look it up.
Gayle in Boise