Originally posted by @pale pendant
Hey guys, just found a recipe for homemade modeling clay that can be stored for up to 3 days in the fridge, in an airtight container and is made from stuff you should be able to get at any grocery store.
You mix one part Corn starch with 2 parts of baking soda and then mix it with one part cold water.
That mixture is heated on the stove until it's pulpy, then transfer it to a bowl or any container you can cover with a damp cloth and let it cool until it's about hand warm.
Can be colored by adding some pigments while cooking the mixture.
By adding some flint you can achieve stone like texture.
Will dry within 12-24 hours, depending on how thick you modeled it and looks like porcellain after drying.
Only thing that's a bit annoying about that stuff is that it's not waterproof at all, so it will need at least one or two thorough coats of clear varnish after drying.