This is a volunteer-perk my fannish-convention (convergence-con.org) somehow thought was a good idea. https://octodon.social/media/xyH2iavubtMVQHMFAz4

This is the nerd-swastika. I know this isn't subtext, it's someone who wasn't offended by HydraCap thinking this would be a fun callback. I have made my displeasure known in several mediums, including the official feedback survey.