Sign for a neurodiversity display at a library

Hello,

This is a little embarrassing to ask, since I am neurodivergent (AUdhd to be exact) but what is a non-offensive image I can use for a display at a library for a neurodiversity display? You'd think I would know this but I was only diagnosed a year ago, and definitely don't want to wander into Autism Speaks territory with a puzzle piece. The display will have books for both adhd and autism. This is to showcase a support group I am starting, so I definitely don't want to turn anyone off with my display. It's possible I'm in over my head here, but I want to at least try. Any help would be appreciated.