"The word "glass harmonica" (also Glassharmonica, Glass armonica, Harmonica de verre or Armonica de verre in French, Glasharmonika in German) refers to any instrument played by rubbing glass or crystal goblets or bowls. When Benjamin Franklin invented his mechanical version of the instrument, he called it the armonica, based on the Italian word "armonia," which means "harmony." The instrument consisting of a set of wine glasses (usually tuned with water) is generally known in English as "musical glasses" or "Glass Harp"".
I found a fun site with a virtual Armonica you can play by clicking on each bowl to produce its haunting sounds. As the site says, "To play the armonica below, click on a glass bowl. Like the real armonica, the tone will linger as you click on the next bowl, putting tones together to make a melody."
Here's the link:http://sln.fi.edu/franklin/musician/virtualarmonica.html
(Photo of the Armonica from Wikipedia)