you make a trough type feeder and you put a 2x4 rail at antler height so when they bend their head to feed the antlers will hit the 2x4 ,anther type is to make v out of fencing you put the food in the center of the v the antlers get knocked off into the fence i dont know if the deer will get caught in the fence though.
Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison.
Genesis 27:3 "The thinking deer hunter should mature through three phases during his hunting life. First phase, "I need to kill a deer." Second phase, I want to harvest a nice deer. And last phase, we must manage this resource so our children and their children can experience the grand tradition of good deer hunting." - Jim Slinsky