Today there was a library staff meeting, and my table was fortuitously covered in brown paper and provisioned with markers. Something resembling an art happened during a less-entrancing portion of the presentation.
That would be a Warhammer 40,000 Ork glyph. One of my co-workers with a less geeky muse drew something a bit more friendly though:
Photos by me. Top drawing by me. Bottom drawing by a co-worker even more anonymous than me.