Yes, I have seen this before. I saw it yesterday at your place. hehe..

I saw this at a glance and it looked like some type of rat bite. However, when I took a closer look it was not an injury. Though the indents on the left could pass as a wound it actually seemed like merged pits (if that is what they are) while the pits on the right were more separated.

Congrats on the new morph - Plentypit Ball or Pittyfull Ball or P. Pitty hehehe
All you have to do is prove it out now... =)