Remember you can choose between the invitation and creating a poster about the Swinging Sixties, the websites below will help you. On the PPT it mentions food, music and clothes resource packs. I was unable to upload them as the files were too big. These websites have the same information on.
Clothes and music: http://www.primaryhomeworkhelp.co.uk/war/1960s.html
I look forward to seeing your creations.