Thanks for your help. I've tried to go for placing them right on the hairline, but it's pretty difficult to do with surgical tape as it does not really stick well. Where do you get hairclips for wireless mics? A simple bobby pin clearly is not going to do the job.
As for a Hellerman tool, I'm refering to the tool about half way down the page at
http://www.hstech.org/howto/sound/mi...icrophones.htm. The ideas on that page seem pretty good for homemade solutions, but I was looking for something a little more profesional and something that sits on the hairline or temple, not a headset-style approach (for the same reasons you mentioned). I don't have the slightest idea where to get the nessecery tools, sleeves, and clips though, and google is not being very helpful.
EDIT: We're using the Countryman B3 lavs, which are pretty small. It shoudn't be hard to attach whatever attachment mechanism I can find to them.