Just saw a link for the current entries in the SpamAssassin Logo Contest. Entries range from a simple updating of the current logo through ninjas of varying danger and cuteness levels, and a few that have actually dropped the ninja motif altogether.
Oddly, a few of them remind me of the Peacekeeper insignia from Farscape. Maybe it’s just the red-and-black color scheme. Speaking of which, it turns out that logo was based directly on a 1919 painting called “Beat the Whites with the Red Wedge” by Russian Constructivist artist El Lissitzky. (originally linked to sebacea.com.)
Back to SpamAssassin, the contest is open through August 6.