A DIY baby mobile that could be made from some quilt batting (for the cloud) and colored paper or felt (for the raindrops). This Mobil could decorate the area over a changing table (a conversation starter for teacher and baby (Early Ed.
The Rubik's Cube was released. Erno Rubik wanted to teach his kids about objects so he came up with the idea of the cube. There we over 43 quintillion ways to solve the cube, and since the over 100 million have been sold.