http://chasinghazel.com/2014/10/hand-strenthening-ot-down-syndrome.html 2 Occupational Therapy Activities that promote muscle development in the hands. I do them with my daughter who has Down syndrome.
20+ Simple Hands-On Activities That Help Build Fine Motor Skills - with fine motor skills going missing at preschool, try some of these hands-on invitations to help strengthen fine motor skills | you clever monkey
DIY Sensory seating Idea- this diy seat was created for students who may have difficulty processing information from their senses and from the world around them. Tennis balls on the seat and backrest provide an alternative texture to improve sensory regulation. Students with autism spectrum disorder, Down syndrome, sensory processing disorder, etc. may benefit from this seating option."