Tim Jahnigen says that play is the most effective therapy for kids. Don’t take his word for it, though: here’s a meta-study of 93 studies drawing the same conclusion (pdf alert).
He also knows how to make a nearly indestructible soccer ball. It can self-re-inflate, can survive punctures, and can withstand heat and cold.
That’s why he founded One World Futbol Project. You buy a ball and they donate a ball… or you can just donate a bunch, especially if you’re past the soccer-playing age.