This year I used the same illustration for due date bookmarks, but I split it in two halves, so that students get either the Krampus, or Santa.
It's entirely random. If you're superstitious, you could choose to believe that getting the Krampus means you're BAD, and getting Santa means you're GOOD. I don't tell the kids that, because I wouldn't want the ones who get Krampus to feel bad. But if it were me, and I got the Krampus, I might think I was totally doomed.
I was pleased to overhear two girls who were borrowing books teasing each other that if they let their books become overdue, the Krampus would get them. They were giggling and freaking each other out with the Krampus. I approve.
I've also had several kids asking for a matched set of the due date bookmarks, so they'd have both Santa and the Krampus. One kid even muttered, "Okay, good, now I can just cut off the edge and fit them together to make the complete picture..."
I think that's pretty cool. It's the little things in life...
(...that will judge you NAUGHTY, beat you with switches, stuff you in a basket and drag you down to HELL... Merry Christmas!)