Cool idea! Funny enough, I was terrified of clowns as a kid. I accidentally saw Killer Clowns from Outerspace and couldn't sleep for weeks
Anyway, I think Jack-in-the-Boxes are creepy, so that's what I'm basing my entry on. Here's a WIP from the last couple nights, still much to do, but I'm pleased with the direction. Probably won't be able to work on this again until after the holidays.
Hope you enjoy!