Tool-Assisted Sigil.
Process: write statement of intent, cast out vowels/duplicate letters, draw cool sci-fi versions of letters, rotate/join/overlap until happy. Make pattern fill, crash Illustrator a lot while doing so (because I accidentally did my source imagery at a very large size, I think).
Abandoned version, part of the results of an hour or two of fooling around with a very stylized font I recently acquired.