"Not only did he touch them, but he put them in his rock tumbler!"

In fact, many experts believe that throughout the ages, rock tumblers have played a large part in the development of the world as we know it.

None of us might be alive if there weren't rock tumblers!

Why, rock tumblers are the most valuable investment --" But the council was on to other business.

Sea glass also can be produced artificially, when pieces of glass are tossed into a rock tumbler or dipped in acid to produce the desired finish.

By 1965, it was producing entire cars, financing the operation by making pulleys for rock tumblers.

During the 1970s, small rock tumblers were a common hobby item, and jewelry decorated with tumbled semi-precious stones was very much in fashion.

"You know," the husband said merrily, "everyone thinks that when I tell them I collect rock tumblers."

Nobody would think to look for gems in a rock tumbler!

Perhaps rock gathering isn't the wisest hobby for a woman whose husband collects rock tumblers.