Some schools such as Panamericana Escola de Arte e Design offer enrollee test papers full with small circles or lines. Almap BBDO made ads from several of those papers. The key question is: How far does your creativity go?

  

P.S.: I’m out for printing. You may try the test as well, here are paper-tests:

  

Tests are created by methodic of E. Torrence, adapted by A.Voronin, 1994
Pictures via HERE