http://deadonrangefinder.com/

It' s a sight mounted label that has lines at different spacings based on your draw length and the average brisket depth of whitetail or elk. You can range animals at full draw to make sure you choose the correct pin.

I use a pendulum, so I pretty much just hold dead on out to 35 yards or so, but this may be good for making sure and animal isn' t too far out. It' s only $10...

Whatchya think?