I'd suggest nailing it to a telephone pole at about eye level, so that the owner may more easily find the missing animal, as well. It's only courteous.
Obligatory disclaimer: Huge cat fan.
That’s a very thoughtful suggestion. ;-) I guess that lest anyone get the wrong idea about me, I actually DO like cats. I am most partial to Siamese. Our neighbor had one we called Frankie (after Sinatra) because of its blue eyes. It was a total love sponge.