I've seen monkeys masturbate but never a deer. You'd think that it would be quite painfull cranking on their unit with those sharp hooves!![:-]
Seriously, I use Pete Rickards Indian Buck Lure. I use it as a distractant rather than an attractant. I place it so the deer turns his head away from me when he checks it out. That way you can get a good shot at a stationary deer. I've tried other scents and have scared deer away. I haven't tried very many because I stick to what works for me. BTW, most buck lures seem to scare the does. Maybe after being harrassed by bucks for weeks, they don't wantanything to do with something that will bring more bucks near them?!
GregH