I designed the "nonbinary crossbow" :nb_crossbow: about a year ago. I'd like to explain the meanings behind each element.
First off, there are the mirror of Venus and spear of Mars--traditional symbols of female and male identities, respectively.
But the central circle is intended to represent agender identities, and the incomplete arc to represent demi-identities.
In other words, it is my desire for this symbol to represent *all* genders or lack thereof--through the lens of trans- and nonbinary-normativity.