I love this thread, so many helpful suggestions, and so many memories for me anyway.
When I was a child I used to perform national dances on stage at competitions. Our dance school was very fussy about the authenticity of the dress, (it gave added marks to win,). I remember my mum and me traipsing round the Embassies in London for pictures of the fabrics and styles. The Polish Embassy was particularly helpful and gave us a handful of beautiful postcards and afternoon tea! I wore a pretty headdress with flowers and ribbons in that dance.
I disliked my Russian dance, it was too energetic and the red boots were difficult to dance in. My friend used to perform a beautiful Dutch dance with clogs.
Sorry to wander and reminicse, and write it all down, but I guess that's what GN is about for many.