Pumpkinhead is an insanely good pick for those of us who love 80's cult slashers/creature features. I can see it translating very well into a fun and potentially pretty scary maze.
For those not familiar with the property, PH is a revenge demon that is 9 feet tall. There's lots of fun there as far as puppetry or design is concerned. The creature's design is one of my favorites from the era, he's like a really twisted take on a Xenomorph from the Alien franchise. (All credit to Stan Winston, one of the all time greats as far as creature design is concerned; PH was also his directorial debut)
As far as the question "is this property relevant?" Not really, but honestly it doesn't have to be. 95% of people attending the event will have no idea it's even based on a movie and just assume it's an original property. But if done right it could be a real crowd pleaser imo.