There are few surfaces available in the world that are harder and more long lasting than stone. While a diamond is forever, a stone is considerably cheaper and lasts just about as long! It is an inexpensive work surface and comes in an endless array of colors and sizes. Offer your customers a selection of customized engraved rocks and stones.

You can find engraving tools extremely inexpensively on eBay by running a search for "engraving tools.