A vain question for those tfs'ers who frequent or live in london (UK)/ paris

[fashionistasista]

I am being rather vain here but i was looking to make the most of a situation... any ideas would be great
my parents are travelling to london/ paris soon (who have no idea of fashion at all mind you) and they want to get me something there - i have not been to london or paris before and will probably not be travelling to either in the near future.... i was wondering if any one with knowledge of these cities would be able to help in something ( kind of fashion related) that they could bring back that perhaps is unique to the city (or at least cannot be bought in australia) that is easy to describe so parents will understand, and will be reletively cheap..
any ideas??