I used letter form boards today having the child pull each letter out of the bag attached to the horse. One almost 3 year old did a very nice job pushing the letters into the corresponding shape boards that I put on the horse's croup. This promoted weight bearing which he tends to avoid.
Another child with cerebral palsy did 2-3 sit ups and then refused to do more until I put a squeaky ball on the mane. Then each time he pulled up, he reached to press on the ball to make the noise. He loved this so much he asked to do more and ended up doing more than 10 sit ups ( with assist as he grasped our thumbs).
Barbara Smith, M.S., OTR/L author of, The Recycling Occupational Therapist