When I did Fundies, the woman who videotaped for us came to class beautifully made up . . and came to the video review session also beautifully made up. I asked her WHAT she was using, and she told me Sephora waterproof mascara. I haven't been brave enough to try it myself yet, though, because it's my experience that when stuff melts and runs into your eyes, it HURTS. So that might be a subtopic -- What can you wear that isn't going to kill your eyes if it does dissolve in the water?