If you live in or near the Kansas City area then you need to make a trip to the Moon Marble Company in Bonner Springs, Kansas. This is a great activity for families or even a Homeschool field trip.
600 East Front Street
Bonner Springs, Kansas
We got to watch an artist actually make a marble. It takes about 15 minutes to make a glass marble by hand & it is a fascinating process!
There is also a whole wall full of marbles that you can purchase! Sorry, the pictures aren't that great because the sun was shining directly into the window behind the marbles.
Not only do they sell marbles but there is also a huge toy shop with lots of fun & even some educational toys. The prices are reasonable and there are lots of unique toys to choose from. There are also "Demo" toys located throughout the store and children are encouraged to play with these toys. Of course, there are many marble toys available.