"Would you like a bloody slug?"
Come on, how cute are these guys?! I'm aware that the name "Bloody Slug" is mildly unappetizing, but let me assure you: these are suuuuuper delicious and will be consumed within seconds by the children in attendance - so if you want one, trust me and move quickly. (And yeah, they're essentially sugar bombs, but whatever, Halloween is like a Defcon 1 high-fructose disaster anyway. Might as well not fight it.)
So what these are, essentially, are cake pops made with extra frosting so that they sort of collapse on themselves and don't hold on to the exterior coating as well (thereby letting the color of the cake show through). And when the color that's showing through is red and the overall effect is that of a melty, ghost-ish, vaguely slug-like creature, there you go: