My daughter brought some little friends home. lol These are Cicada skins from after the nymph cicada has shed its skin to turn into an adult Cicada.
She found them on one of the trees. You can see here that there were quite a few of them on the tree.
They were all over the trunk of the tree.
This is how my daughter came back from walking the dog. She was wearing the skins like jewelry on her shirt. lol