You can get it online at Ben Nye. They are one of the best stage makeup companines ever..this is really off subject but they make stage blood that taste like mint..I learned that in my stage makeup workshop I just thought that was really intersting sorry. Oh and make sure to get the right skin tone..or it looks really weird..I had this problem during "complete history of america abriged". Also apply lighly..it goes on really thick..you may have to play around with it to find the right amount.
You can also check local costume shops. If you have any questions just ask..I was makeup director for one of the high school shows and I've been to a few workshops on it so I know the basics on blending and shading!!