If you can, remove any bark or anything that would harbor mold or little creatures. Soak it in a disinfecing solution, and rinse well. Bake it in the oven for at least an hour at 300 or so. Make sure it does not burn or catch on fire though.
If there is anything the nonconformist hates worse than a conformist, it's another nonconformist who doesn't conform to the prevailing standard of nonconformity.