Mine has to be the Adidas Tango: http://en.wikipedia.org/wiki/Adidas_Tango. Archie Gemmill, ticker tape, Argentina's short shorts,...
That shouldn't be hard to find. Adidas Tango, Azteca or Etrusco were among most popular christmas gifts from late seventies to early nineties in Europe. I saw a couple of Etruscos three years ago in a closing sportshop.