I need a good way to attach a body mike to your face. Nothing seems to work with sweat and make-up. Any suggestions?

Try using Johnson & Johnson Dermicel tape - it's a PAPER tape which CAN be applied to the CLEAN skin and then the makeup CAN be applied over it and it holds well under adverse conditions (though SWEAT is ALWAYS a problem) but the makeup CAN take really well to the paper.   The only problem lies in the type of makeup used.  Oil based makeups wreak havoc on anything. If you can use water based makeup you'll do better.  Might have to slightly alter the color makeup over the tape to darken it very slightly to blend since it's white but thin. I've used it around edges of latex pieces, masks etc., to blend around eyes and so forth for stage use.  And while not totally imperceptible to sweat (very little is) at least it holds better than anything I've found.  You can also powder with a little ZINC OXIDE powder (available from your local druggist or chemical company or online at special makeup supply places) and that helps cut down on sweat.  You can also sometimes get away with using an anti-perspirant over the area to keep sweat from occurring in a particular spot and that will help in the adhesion of most any kind of tape as long as it is the kind of anti-perspirant that dries clear and not oily.  But the paper tape is not very expensive.  Couple strips of that stuff BEFORE makeup - on clean skin, then you can apply the makeup on to the paper and around the mike (which really should be flesh colored anyway to hide) and you'd be good to go.  Black mikes look horrid except right at the hairline where it can be hidden by hair - except on light haired people...alas!!

We use 3M's micropore tape with superb results.

http://www.firstaidwarehouse.co.uk/xpl-tapes_microporous.html

Seems to hold up well against sweat, movement of the face and everything a cast of children can throw at it! Make up can be applied over the top too.

Oh Patrick, you made my day! I laughed my socks off!

We've tried several types of mike tape and they all seem to be a bit of a problem. Lately our actors have been putting the mikes on top of their heads with the tip landing on the forehead just below the hairline. It works great if you're wearing any kind of hat, wig or headband. It's not nearly as noticable as taped to your face and you can actually attach it to the hat or wig instead of yourself.