Swing
We took a swing hammock and hung in from the Ceiling in the Living Room. This helps us calm him as well as giving him an activity he can do indoors.
Outdoor Trampoline W/ Netting
This is a great activity, We also had an indoor small trampoline that he used until he broke it 4 times. (He uses it that much)
Pools
A pool is about the greatest way to wear out a child with Autism. It is a well known trait that due to sensory issues they seem to gravitate towards water.