Look At:
Hunter’s Specialties? Deluxe Deer Drag
http://www.basspro.com/servlet/catalog.TextId?hvarTextId=49364&hvarTarget=search&cmCat=SearchResults
$7.99 + Shipping & handling
You can get a chest harness only for like 25 bucks.
This is the one I have. You’ll need a large carabiner to close it in the front, and another large carabiner to duct tape over the “X” in the back to attach the rope to.