The original icons are these:

• Copyright: https://www.svgrepo.com/svg/102010/copyright-symbol
• Bone: https://www.svgrepo.com/svg/506122/bone

The copyright logo is CC0 licensed (public domain), but the original bone has a CC attribution license, so i thought might as well link the copyright logo as well. Surely this is the kind of attention they had hoped for lol.

While I’m at it (not that it matters much here on the high seas), this work shall hereby be CC0 (public domain) licensed as well.