special effects make up

I don't even know how to describe what I want to make, but I feel like there must be a way to do it. I'm costuming a community theater production of Willy Wonka. We have 12 shows to do, and no access to running water. In there scene where Augustus Gloop falls in to the chocolate river (shiny...

I am trying to put together a list brick and mortar stores that sell stage design materials (not lighting). Does anyone have any good suggestions? Looking mainly in the U.S, but wouldn't mind looking elsewhere.