Since a few people have wondered what the significance of the colour blue is for autism, here's some info about it :
April 2nd is World Autism Awareness Day, and a well-known event held as part of that is Autism Speaks? global Light It Up Blue campaign
https://www.autismspeaks.org/blog/2012/04/02/shine-light-autism-rosco-color-filters
"The first question we wanted to ask was - why blue? What does the color blue have to do with the autism spectrum? The answer is that Autism Spectrum Disorders are almost 5 times more common among boys (1 in 54) than among girls (1 in 252). So, the color blue represents the boys diagnosed with autism."
Stimming : Self-stimulatory behaviour ? or stimming ? is repetitive or unusual body movement or noises.
http://raisingchildren.net.au/articles/autism_spectrum_disorder_stimming.html
We all use stimming sometimes. For example, some children suck their thumbs or twirl their hair for comfort, and others jiggle their legs while they?re working on a difficult problem or task. You might pace up and down if you?re anxious, or fiddle with a pen in a boring meeting.
Many children with autism spectrum disorder (ASD) use stimming, although the amount and type of stimming varies a lot from child to child. For example, some children just have mild hand mannerisms, whereas others spend a lot of time stimming.
Children with ASD use stimming to manipulate their environment to produce stimulation, or because they have trouble with imagination and creativity and can?t think of other things to do, such as pretend play.
Examples of stimming include:
hand and finger mannerisms, like finger-flicking and hand-flapping
rocking the body back and forth while sitting or standing
posturing ? holding hands or fingers out at an angle or arching the back while sitting
visual stimulation ? looking at something sideways, watching an object spin or fluttering fingers near the eyes
repetitive behaviour like opening and closing doors or flicking switches
chewing or mouthing objects
listening to the same song or noise over and over.
Stimming isn?t necessarily a bad thing, as long as it doesn?t hurt your child. But some stimming can be ?self-injurious? ? for example, severe hand-biting.