I found a few fonts and alphabet images based on the idea of overlapping geometric shapes, all with different approaches.
This started off as something inspired by Michael Biggs' letter design for the B-series of Irish Pound banknotes (1976-1993).
Lughnasadh (1 August) is the Gaelic festival marking the beginning of the harvest season.
Offstruct RGB is a pixel colour font made using Adobe Illustrator and Fontstruct's new layers feature. It is inspired by the additive colour model in which Red, Green, and Blue light are mixed together. More samples here: BehanceThis is a clone of offstruct