Inspired by the Maze Set. A technical fontstruction showing the usage for thinner macaroni bricks. The logic for possible counter relation: 

1) Every letter is filled with thinner version of itself (self-pattern fill).

2) Outline vs Inline, emphasizing the "opposite" meaning of counter.

Another example of glyphs acting as the counter in a space, and this space filling the usual "glyph's white space" in the way the counters were described for the competition.