Have you checked out "Beyond Your Backdoor"? It's a nature store and a new division of Lesser Jewellers.
Backyard Golf - Target Game
For use indoors, outdoors and in the pool (it floats)!
Includes 1 x 16.5" foam target + 3 x golf-ball darts
Ages 5+
Take turn with a friend throwing the golf-ball darts onto the foam golf green target. The player that gets the dart closest to the hole wins!
Item number: 135BB TS-2080
Price: $52.98