Israeli mother Debby Elnatan’s son, Rotem, has cerebral palsy. She would not accept that Rotem would never walk, so she invented the Firefly Upsee. The harness places the child on top of the shoes of an adult who wears specially designed sandals. The child “walks” as the grown-up moves.
https://www.youtube.com/watch?v=Rw6CPRHpvGw
http://www.huffingtonpost.com/2014/03/25/upsee-kids-walk_n_5027905.html