I've made quite a few home jobs.

My favorite is a nice-sized cardboard box filled with old rugs, clothes, blankets and towels. Make sure none of the ingredients are rubber-backed, because it makes for tough arrow removal.

The shrink-wrap works awesome as well. Just fill up a burlap sack with balls of shrink wrap. Very light and will stop a freight train.

These are only good for field points. One of the foam-type is recommended for broadheads, b/c you can't get a broadhead out of these ones.