This is my first blog/post here so I wanted to open with something you can use in your haunted house.
While I worked at Netherworld I worked on the 3D area. I remember writing down this idea. When you put on glasses and walk though, the UV lights and painted props really pop out. One of these rooms was known as the "Dot Room." This 'dot room' looked like you were floating in space. It's this room that inspired me. So, here is some additions you might or might not have thought about.
3D Mobile. Incase you have no idea what a mobile is they look like this:
The idea is make a huge mobile, attach a small motor, and paint the parts in UV paint. Nice and simple. Now, I suggest for you more creative ghouls, to make your parts of heads, body parts or bugs.
Here is some black light inspiration for you: