Salut!
I'm going to Paris on Wednesday pour un tour bref and I'm thinking about visiting some 8-bit related place to possibly find a treasure other than Mona Lisa so I'd like to ask you: if you know of any notable flea market, a thrift shop or whatever send me a MSG s'il vous plait.
Merci beaucoup!
But, there's a famous "marché aux puces". It's "Marché aux puces de Saint Ouen". It's at north of Paris at St Ouen, you can take the subway line 13.
http://www.les-puces.com/