Play dough queries.

I could not get cream of tartar in local grocery shops.

Is there any other alternative to Cream of Tartar
in play dough recipe.

Also can I add colors at last.
I mean Preparing base dough and add colors later whenever required.

How many days can I keep prepared dough in refrigerator?

Can anyone tell me what is cream of tartar called in Hindi/Marathi language. (I got one name
Gorakh chinch in marathi but the shop owner does not know this name.)

– Kreena

cream of tartar is sold where the spices are.