Want to make a gift to eternity? Nothing says forever quite like a handmade stone bowl. Maker extraordinaire Tim Anderson writes our Heirloom Technology column each issue of MAKE, and for Volume 24, he shared his technique for carving a stone bowl. Head over to Make: Projects for the full tutorial. As Anderson notes, “Fortunately, tools with diamond-studded cutters have become cheap and abundant. They make stone carving amazingly fast and easy. The same techniques seen here can of course be used to make any sort of stone objects you desire. My bowl is heavy and shallow because I plan to use it for a mortar to make nut butter. And I want it to last forever.” What kind of bowl will you make?