Help Me Identify This Dark Talisman

So, I was doing my annual vacuuming under the couch in the family room, and I found this dark talisman:

Can anyone help me identify it and give me a hint as to how to reverse the effects of any dark magic it might entail?

Also, can anyone please tell me whether it was my children, my cats, or something more sinister that deployed this demonic bit of obeah upon us?