What you’re looking at here is bones and crocheted yarn partially hardened with glue.

I collect roadkill animals. White-tail deer bones make up most of my collection.  There’s  also raccoon, opossum, otter, skunk, squirrel, dog, cat, coyote, fox, horse, and vulture bones and some other creatures I'm forgetting (check out my photo collection of dead animals, in the great beyond).