Polymer Clay Gingerbread House
I would like to know if there is a recipe for cornstarch clay that does not need heating.
I think the ingredients are glue and cornstarch, glycerin or baby oil; but can't seem to find the recipe anywhere.
I'm afraid there is no such recipe. But I can tell you how to make polymer clay in the microwave, which might meet your needs.
Here's a Microwave Clay Recipe, as well as a recipe for salt clay which is kid-safe and does not require heating.