I discovered that you can do a lot of fun things with those tops you usually throw away.
1) Stack them together as a tower. They connect!
2) Count them.
3) Use them in color recognition game!
4) Roll them as wheels too!!
5) Try different combinations of colors as a memory game
6) Imaginary play. Mila pretended they are her roller skates.
7) Throw them in a can
Mila had a lot of fun with it. I wish I knew it earlier, I would have big collection by now.