Mendo Mulcher Grinder for Sale Online. Mendo Mulcher makes some tough grinders—all out of solid, aircraft-grade aluminum—but this one might be the most useful. At only 1.75 inches across, it’s best for travel, and its extra-grippy construction ensures you won’t slip up while using it despite its small size. With only two pieces, you’re short a mesh filter. But it does have a cool, hardware quality to it.