craftgrrl | Body painting for a Halloween costume

The time of the year has come and I've been gathering all the stuff I need for my Halloween costume which this year will be Miss Argentina from Beetlejuice (the receptionist in the underworld's office). I think I have everything ready but what I am going to do about the whole green body paint thing.

I thought about a bit of cream or make up mixed with green eyeshadow but it doesn't seem to stick as much, and I'm afraid that professional body paint is too expensive and a bit too harsh to my skin which is very sensitive. Do you know of anything else I could use? :(