Why don't you just try a regular nylon collar with a metal buckle? I don't think Smokey would be able to chew through it as he wouldn't be able to reach it. Just make sure it is snug enough that Smokey aka Houdini can't slip it over his head. I wouldn't use a pinch collar if the dog will be on a tie out.

My dog Duncan has to have a metal clasp collar because he is so strong, if he sees something he wants to chase, he snaps the plastic buckle right off. He's broken one or two collars and a seabelt already. Now he has a plain red double strength nylon collar with a metal buckle. I use a gently leader when walking him however. It stinks because a lot of the really neat decorative/theme collars only come with plastic buckles! I wanted to get him a Syracuse University collar but it would be a waste since he would only be able to wear it in the house.