How can I get skin color a differnt color?

For halloween i want to be a ompa lompa from willie wonka and the chocolate factory. If you have a idea please tell me and it has to come off pretty easy. thank you.How can I get skin color a differnt color?
Have you talked to michael Jackson? hehe just kidding. I would say food coloring is the best way, it washes off the easiest and it gives nice color. How can I get skin color a differnt color?
rimmel sun shimmer instant fake tan, get the darkest one and it will make you orange then it washes off with just water.


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Use body paint? It comes off easily.

skin blackheads