So this has nothing to do with parties but it is Halloween related and I love it. Really, who wouldn't want a haunted house full of Weebles?
The more I think about it you could turn this into a party. How about an 80's themed Halloween party - the fashions and hair-do's were pretty scary. Everyone can dress in their favorite 80's finery. Play some Atari and pull out the Rubik's Cube. Get some vintage MTV videos gong on a big screen. This could be a lot of fun.
Just a note...I realize that Weebles are really more of a 70's toys but remember those of us that were 80's teenagers were 70's kids and we played with our fair share of Weebles.