Could you find me a 60s inspired dress please?

[NeitherKilnerNorMason]

It's for a party but I don't necessarily want to wear fancy dress. It is for a friends' 50th and will be in Iceland in 2 weeks time! Oh, I'm a size 10 ish.

[Swearwolf]

How about something like this from Joanie clothing? They have lots of 60s inspired dresses that are lovely and not fancy-dress-like at all.
And check out Elsie's Attic, they had a gorgeous floral yellow one.