Mighty Beanz
Collecting toys has always been a part of a kid’s life. It is also a lucrative business and so establishments normally make a lot of investments to promote popular toys. Mighty Beanz was among those that became popular in the 1990s and beyond. There is not much you can do with it, really, because they were simple bean-shaped capsules that tumbled endlessly. But kids loved it and many parents found themselves buying the little bean-like things for Christmas.
On the one hand, it was also a learning event for children. Parents taught them about the laws of science, including the fact that an object at rest will remain at rest. The moment slight pressure is applied, the object starts moving until gravity stabilizes it. If such lessons are too early to impart, then simply letting the kids have fun is more than enough.