When I was ten, all the boys played marbles. But the little ceramic spheres were, among other things, called "miggles" and were plebeian compared to the colorful glass sphere called "aggies" from resemblance to agate, or just "glassies".
Dickens has a character called "Miggles". I have no idea what the name meant to him.

The game in which this national champion will be as well known and as popular as "Babe" Ruth is in baseball is called by different names in different places. In New York they call it "Yorkers." In Newark it is "Miggles." Philadelphians say "Commons Down" or "Aggries Down" and in Baltimore the word is "Hoodles." The name by which the sport is recognized throughout the United States is "Marbles."

Yes, and the National Marbles Championship is played each year on the beach in Wildwood, NJ. Here mibsters, as marbles players are known, gather from the far corners of all 50 states, and some from around the world, to try to win the big one.

http://www.blocksite.com/wildwood/main.htm