I'm the editor of the Crafts for Kids department at Handmadenews.org, and we've published several articles that've been helpful for parents with children dealing with Autism or Asperberger's Syndrome. Here's a list so you can find them all in one place:
Handmade Toys with Lori FoggHow to Make a Travel Sized Weighted Blanket for Children With Autism or AsperbergsSensory Smart Activities for Those With Tactile DefensivenessI'll add to this list as more articles are published.