Glass golem

Glass golems are the result of polypiling too many worthless pieces of glass. They drop worthless pieces of glass when killed. As a result, some players, for their gem-hoarding needs, like to generate glass golems in order to identify more worthless pieces of glass.

Encyclopedia entry
"The original story harks back, so they say, to the sixteenth century. Using long-lost formulas from the Kabbala, a rabbi is said to have made an artificial man -- the so-called Golem -- to help ring the bells in the Synagogue and for all kinds of other menial work. "But he hadn't made a full man, and it was animated by some sort of vegetable half-life. What life it had, too, so the story runs, was only derived from the magic charm placed behind its teeth each day, that drew down to itself what was known as the `free sidereal strength of the universe.' "One evening, before evening prayers, the rabbi forgot to take the charm out of the Golem's mouth, and it fell into a frenzy. It raged through the dark streets, smashing everything in its path, until the rabbi caught up with it, removed the charm, and destroyed it. Then the Golem collapsed, lifeless.  All that was left of it was a small clay image, which you can still see in the Old Synagogue." ...    [ The Golem, by Gustav Meyrink ]