So here's a trans pride flag, made out of (from top to middle): Copper (ii) sulfate burning behind cobalt glass, rubidium burning, and magnesium ribbon burning.
Being trans is metal as heck even if we don't all transition.

original images grabbed from:
https://commons.wikimedia.org/wiki/File:Flametest-Co-Cu.swn.jpg
https://commons.wikimedia.org/wiki/File:Die_Flammenf%C3%A4rbung_des_Rubidium.jpg
https://www.youtube.com/watch?v=sXULxvEFJwc

https://sins.center/media/YzGDnbgywjEoBZt-FOI