Etsy user Pyroteeze has constructed a Star Wars Death Star Herb Grinder.
This tiny handmade technological herb terrorizer can grind up stuff like sage and lavender, as well as many plants and spices. The 2.5-inch device, which is a bit smaller than a baseball, is made from non-toxic polymer clay and is antiqued with a light black acrylic paint.
As you can imagine, once the secret of this grinder made it out to the interwebs, it sold out, but be sure to check over at the Etsy page to see when it will be available again. (Pyroteeze is just waiting for more materials to make more.) The grinder costs $22.00, plus shipping (which varies depending on your location).