Dog hooks revisted

The two Bobs, Bob Baggett and Bob Riggs, installed three dog hooks in the park quite a while back. We're still wanting to improve the area where the dog sits waiting for their owner to return. Lot's of choices for materials, but no obvious front runner. These dog hooks are just starting to gain popularity around the country and there doesnt seem to be any tried and true answers to questions such as these.  One thing for sure, people are liking the dog hooks. They're being used quite a bit already and we're getting lots of positive feedback..