Have you read the book The Out of Sync Child Has Fun
There are a lot of good ideas in there for helping kids who crave sensory-seeking behaviours.
Sometimes, if you try some of these activities before going to an occasion where focus is required, they are able to focus better.
My DS cannot focus easily in school, so he is allowed to have a basket sensory toys on his desk to play with as he listens to the teacher. He also cannot sit properly in his chair, so he stands at his desk instead of sitting. The teacher also has a wobble seat at the back for him when he feels he needs it.
He has trouble at recess because of the number of kids, so our OT suggested he get `grounded' before going outside. She suggested he stack the chairs before going outside, do the bunny hop or crab walk to the hook to get his coat. He can also carry a ball outside, or hold someone's hand.
We are currently finishing our basement and we are making it into a sensory room.
We have rings, a disc swing, rocks for rock climbing, bean bags chairs, swinging enclosed chairs, rope ladder, net ladder, balance beams (2 x 4s
)from one stud to another, etc. Here are some of the products if anyone is interested. None of it is expensive.
I bought something like this at Toys R Us:
A lot of these items can hang from the same set of eye bolts, and can all be stored in a nearby cupboard.