A molcajete is a stone mortar and pestle from Mexico. They're great for grinding spices and making salsa and guacamole because they give everything a nice coarse and rustic feel. I've never collected anything, but I think I might start collecting these because each one is decorated differently.
It's always been a gift with me, hearing music the way I do. I don't know where it comes from, it's just there and I don't question it.