I came across this blog where a woman makes homemade toys and puts them in huge ziplock bags in trees or in public places with a sign attached that says, "I'm yours! Take me home!" Kids write to her afterwards to tell her where they found the toy and what it means to them. It looks like you can make things, too, and donate them to the cause. I think the author is an Aussie, but I'm not certain. I love it!