Growing up as a somewhat ADHD child; my best therapy was church. Not because of the praying and religious instruction, but because Mom would make me sit still for 40 to 60 minutes. It was a struggle but either I sat still, or would face her wrath afterwards. AND she could stop my fidgeting with one scowl! Looks like scowling parents will no longer be required? There is an entire new industry to keep us, both adult and child alike, still.
Gee, I thought the only fidget toy you needed was a cell phone?