What you guys are describing is pretty much exactly what I was thinking. Something heavy and shorter. A wedge would help cut through the denser hair growth I think. The other thing I foresee having trouble with is dropping the thing. I've had problems with this with my cheesegraters when holding them at weird angles behind my head (especially when my hands are full of lather). Is there such thing as a tang that curls all the way round at the end, so you can keep it on your finger like a ring?