Still Playing School: Fine Motor Rainbow Ball Game - I have one of these at home. Not only working on fine motor skills but great busy activity!
Best Toys 4 Toddlers - water Bead Balloon for Hand Strenghtening (and fine motor practice with kids)
Make a Rainbow Sensory Play Bottle / Musical Shaker, great for all ages. From My Little 3 and Me. Great for gross motor play and sensory play!