For several years I have been a freind of Dr Angela Haeussler from Chemnitz in Germany (we met while I was doing an origami job there) She works extensively with children who need therapy and she uses origami extensively in her work.

I sent her some of my diagrams recently for use at work and she has sent back a charming video of thanks from her children. It’s hosted at a cake website (and why not), so I don’t know how long the link will remain, but it’s good and kitsch 😉