Maybe you remember Dead Ted. Perhaps a zombie would do the trick?
The Count is a favorite of mine. A vampire perhaps?
Skeletons are always spooky, and I've worked up a new pattern much different from this little guy.
These are just ideas. The giveaway prim would be different from any of these because it would be OOAK of course! Is there some creepy cute confection I didn't list that you'd like to see metake on?
So what half evil minion would you like to come and live with you?