Idea`s For 50`s Party?

I am planning a 50`s themed party for my in law`s 50th birthday and I was wondering if anyone had any ideas? I am doing your "diner food" milkshakes burger baskets things like that but I was wondering if anyone knew of any neat activities or favors I could give or just any ideas would be great! Thanks
Posted by Kate; updated 06/14/07