RE: SHED CATCHER
You can make a shed "catcher" by setting up fencing in a kinda tight zip-zag pattern with fence posts. Then throw some feed into the tight corners that the fencing forms. As the deer feed into the corners, you hope that their antlers get caught up in the fencing and they pull them off as they try to free themselves.
I have never been a big fan of these as what is to say that their antlers just pop right off for you to easily collect. Maybe the antler isn't ready to pop off and the deer injures itself trying to fight for freedom. You could get into legal trouble their - even with no ill intention.
Walking the edge of doe trails and crop fields is a good way to find true sheds. plus you get the benefit of "scouting" areas and see what's going on. Many tractor tires go falt - victims of sheds dropped along field edges.
Shed hunting is a great way to "continue your season" in my opinion. I am known for getting my "shed posse" (me, my 3 boys and a couple two or three nephews) together occasionally too grid out an area for a thorough search.
I really prefer to look for sheds with a little snow covering the surface, it makes the lerger ones stand out alot better than a ground which isn't nice & white.