http://www.celticarttherapy.com/celtic-art-therapy-applications/celtic-art-therapy-and-autism/
hey, bymyheart,
this might be helpful for your child. I found Celtic Art Therapy plate in the Renaissance Festival and tried a little bit.
it's kind of interesting. Each "hiccup" the brain had after tracing for a little while brought the brain into a deeper level of relaxation. Some plates are some specially designed for autism.
hope this help.