What would be the best way to paint on rubber?

Question

Ive bought a gas mask to use as a photography prop and plan to paint it. I dont want to paint all over, just sections and 'war paint' and so. Im not sure what paint would work best on rubber, especially rubber that has to streth to be worn. Any ideas?

Answer 1

Acrylic, possibly with a medium added to give it more stretch.  Oil would eat the rubber.