Deconstructivist-style letters
Deconstructivism, too, operates according to rules. They’re just different. Accordingly, a design grid does not have to be based on a uniform pattern; it can also be structured according to entirely different principles.
Letters are constructed according to a few very simple design principles: they essentially consist of circles, triangles, and rectangles as shape-defining elements. However, letters can also be represented within a grid. We’re all familiar with the various display systems in public transportation; stencil fonts are also constructed according to recognizable patterns, and the best-known examples are probably the pixel fonts from the early days of computing, which are built quite simply from small squares.
But you can also implement this in a completely different way. Not so regular, not so rigidly following just a single, simple repetition principle. How about a few slanted lines?  Or varying spacing?
GRIDSTER is based on a grid that resembles a geometric carpet pattern more than a design grid. It still looks reasonably orderly, but it leads to unconventional shapes when you try to form something supposedly fixed, like Latin letters, from it.
So if it doesn’t absolutely have to be legible… why not…?