What is Sissy Holding??

In S2E8 when Harmony is asking where the key is it pans down to Sissy's hands holding an egg-shaped stone with a face on it (20:39). It oddly resembles Irv a lot? I have scoured the sub to see if this has been posted/ discussed & i can't find any thing about it?

In S2E8 when Harmony is asking where the key is it pans down to Sissy's hands holding an egg-shaped stone with a face on it (20:39). It oddly resembles Irv a lot? I have scoured the sub to see if this has been posted/ discussed & i can't find any thing about it?