How many ounces of body paint (make-up) will I need to paint my face, neck and arms?

They come in 1/2 oz. packages. How many will I need (it is for a costume)? Just give me an estimate. Especially if you have experience. THanksHow many ounces of body paint (make-up) will I need to paint my face, neck and arms?
How would we know? We don't know how big you are. If you are 5'2'; and weigh 100 pounds or 5'10'; and weigh 175.....it would be two different amounts.How many ounces of body paint (make-up) will I need to paint my face, neck and arms?
1 pint
What's the punch line???