ORIGINAL: deernutz
I think I know what your talking about your have to build a feeder out of wood with a roof. Then simply put some wire around the beams connecting to the little roof. The deer sticks his head into eat some corn. Pulls out horns come off. I have never seen or heard of this hurting any deer. Wish I had a picture of it. It's hard to put in words.
Is it similiar to this?
http://www.shedhunter.net/shedhunter.htm