We have recently had some trees cut in our yard. Stumps and roots idea

Make a 'stumpery'. Use the most interesting pieces - group them in different places around the garden and plant around and between them.

To get rid of stumps, drill 1" blade drills into the stumps and pour in Epsom salts. It will kill the stump and make it easier to remove in a few weeks or so, depending on your winter weather/ fall weather coming up.

You can hire a person to grind down the stump or rent a stump grinder yourself. Tree roots generally keep growing long after the tree is gone, but you can drill holes in the stump and use a chemical stump remover that helps the stump begin to rot.