1976, 86 & 96 Party - Adult

I am planning a party for my Mother who is turning 55. She hasn't had a party for many years, I think before she even turned 30.So, I am going to be decorating three rooms in my home. One will be the year 1976, one for 1986 and 1996. I have be doing lots of research! When the invitations go out all the guests will have the option of bringing a gift of memorabilia from one of those years. I have also planned to serve the "hot" party food items from those years. I can't wait ! She will be so surprised !