Autism infinity symbol. From left to right, the symbol is gradientally colored in with red, then orange, yellow, green, blue, and finishing with purple. An alternative to puzzle piece autism symbols, which are strongly disliked by many adults on the spectrum: http://unpuzzled.net
Own work based on: http://fyeahautismspectrum-blog.tumblr.com/post/5852385279
Eric (last name Unknown authorUnknown author)