The above image, from my Tumblr and now on my LJ and DW profiles, is my personal sigil. Okay, it's not really a sigil, just a collection of symbols. Here are their meanings:
The flag background is the Demisexual pride flag. I'm only demisexual where men are concerned. I don't know if there's another term for that subset or not, though. Probably is, but I don't know it.
In the black triangle you will see two symbols: the pentagam, a religious symbol that represents the five elements (earth, air, water, fire, and spirit).
Also in the black triangle is the transgender power fist symbol. I use it because I'm transgender and to show solidarity with trans people of color (especially black trans people) and to show solidarity with black people in general.
In the top white stripe there is... okay, I think the many circles in a pattern thing was a symbol for multiplicity. Ah yes, I was right.
The seven-pointed star next to it is the primary Otherkin symbol (five of our collective's members are non-human sapients.)
The infinity symbol inside the heart is a symbol of polyamory. Because I am polyamorous.
The funky looking P-shaped symbol is the symbol of pansexuality, because I am a pansexual.
On the far left of the grey stripe (bottom) is the 8-rayed star of chaos magick, because I'm into that as well.
The red and white striped heart inside a half pink half blue circle is the ageplay symbol. I am into ageplay as a "little." It's mostly Molly Elizabeth who's into that; she's one of the people that live in this body, and in our mind's eye she takes the form of a 7 year old girl with blonde pigtails and blue eyes.
The next symbol there is the Greek letter Psi, but I don't remember why I put it there. My guess is it's a reference to my empathic ability, which is a psychic ability, but I'm not sure.
And of course the rainbow flag with white wheelchair person cutout is a reference to my being an LGBT disabled person, though my disability is largely an emotional/mental one. (Chronic depression, chronic anxiety.)