Any guesses as to what this used to be?

It was going to be a treat for Loki. We bought him a nice bone at the market and Matt was going to heat it up a bit for him ... so he put it on the grill while we were cooking dinner inside. And we forgot about it. And went for a walk. And when we got back ... things were rather warm. 600 degrees. The BONE was on fire. Yikes.

Maybe we can get him a treat next week ... for now he's back to raw-hide chews. I think even my rather indiscrimate dog would turn his nose up at charred bone.