I don't know if its going to be in a house, but it would be cool if you decorated each room differently. Like one room decorated with the rock part of the 80's with posters, pins, every thing really rock and classic. Another room with the glam and very colorful. Things that Madonna inspired; plastic, colorful rings as streamers. Maybe a room that is inspired by very 80's toys. I think if you could make some kinda of paper Rubik's cube thing to go over a light that would be really cool. Maybe have things inspired by video games too in that room. Or even some of the great cartoons. Don't forget to serve some candy for the era that would be awesome if you could. Go crazy.
I love planning parties in advance too, it makes things so much better.



