Black ring:
A black ring worn on the middle finger is a symbol of the asexual community while one worn on the ring finger is a symbol of the aromantic community.

Lavender:
Lavender is a color and flower often assoicated with the queer community. Lavender was worn at some early protests for queer rights and has since become a symbol of queer resistance.

Green Caration:
The green carnation was worn on the lapel in the late 1800s to signal that a person identified as queer.

Butterfly:
Butterflies are often associated with the trans community because of the transformation they undergo.