I use a set of real antlers off a road kill buck. Use them all through the rut, best if used with scents as well. Make sure you rattle in a place where the deer will here you, like a hill above a trail or a field edge. Be ready, becouse bucks can sometimes come in really fast, i killed my first buck last year using rattling antlers. I rattled and not 5 minutes later he came in running.