another sketch idea; logoformed the initials a tad more and played with the circle/sphere idea more. The crisscrossing lines mean nothing specific yet, but once i think about the idea more and submit a new version, they will probably have attained some kind of significance (i tend to work by sketching, thinking about it, and sketching some more).
hope you enjoy. the circle, lines etc also looks rather slick as a mono-colour "stamp". more later.