'C.D.' tells me
There's a free glow-in-the-dark Frankenslime (tiny plastic figure) in this week's DANDY. No similarity to the spooks, I'm afraid, but it's kind of a spook, and it glows.
I asked for a picture and received the following rather disturbing, scanned image:
This is the stuff of nightmares and a big 'improvement' I think on the original item: