My neighbor get me lots of tree stumps from a local tree service. I have several large pieces of tree bark . Any ideas on how to use them ??

While I'm here, I'll share my other ideas. I use flat tree slices for stepping stones. I use hollow tree slices to wrangle my peonies and straggly plants. I use odd shaped ones for garden decor. I set up a child's table and stools made from stumps in a secluded place in the yard. I stood a large thin flat slice on it's side and put house numbers on it. Any other ideas ??