Thanks! I've tried the hot sauce - it worked at first but now I think Louie is immune to it. He has a nylabone but prefers the the fine taste of wood.
I will try the sticks. He loves sticks outside. How about a big chunk of wood? The other night my mom gave him this wand thing that was made of wood (we thought it was made of plastic). He chewed it up and I would say it was a solution however there was paint on it. This is probably bad right? Can he get slivers from it?