The ridges on my current mortar have worn down, and I've never been happy with the marble pestle that accompanies it, which is too slippery. It's been suggested that I get a Mexican mortar, which has more indentations and is easier to use. The cooking equipment supply store in the Chelsea market sells one, but it's way too large. An employee their told me I could purchase a smaller one at stores in Queens, but I'd prefer not to have to make the trip. Does anyone know of a Manhattan food equipment supply store that sells small Mexican mortars? It doesn't have to be a Mexican one, I'd just like a mortar and pestle that are not overly smooth and slippery--one that catches the ingredients being pounded in its ridges.