http://www.arcatapet.com/item.cfm?cat=5449
My mom grabbed two from Wal-Mart today--it was so thoughtful and sweet of her--but I'm not entirely convinced of how safe it would be to let him chew on them, as the rawhide inside is ground up. Most of the pieces I can see are quite small, about the size of your average dried parsley flakes.
I'm still keeping the two she bought--I think they'll be a really fun high-value fetch item for training/playing, but I'm just not sure if I feel safe letting him have a go at them, even if supervised.