Well, actually this challenge took place yesterday, but I didn't manage to get onto the computer, so I post my mani tonight.
I really loved that theme, mainly because I have a image plate with bats and witches so this is my mani:
So, I first used China Glaze Mrs. Claus and OPI's Black Onyx on my ringfinger:
As a stamping plate I used Bundle Monster 13 and P2 as polish. For the Ringfinger I used China Glaze's Ring in the Red and a sponge to apply it.