I have an older, oversized Frankenstein costume, and Frank carries a cauldron with you inside of it, it has fake legs that stick out over it, and it's about 8-9' tall depending on who's wearing it. It's getting a professional makeover to be black light reactive, but I don't really need it. It's perfect for parades, and advertising, as your logo can go on the humongous cauldron. And can easily be family friendly, or creepy. I'm in CT, and can send you pics if you'd like, just email me, bobbyarelATgmail.com
I don't care what I get for it, and am open to trade to be totally honest lol, it just doesn't fit so I might as well give it a good home.
If you don't choose to go that route, just about any more old school character might be neat, like old school vampires, or mummy's, or goblins, or creature from the black lagoon, a wolfman, something that isn't really scary anymore but was crazy like 20 years ago, but with a twist maybe?
Or childrens show characters, like a teletubby or cookie monster, or something, that'd be neat.