I've removed anodizing while working on hotrods. For large parts, caustic chemicals can be used, but it is a mess. It can also be polished off. I would recommend you take the part to a shop near you. Look them up in the phone book. Most will have polishing services. I'd think a part that small would be relatively inexpensive to have polished and reanodized, as long as you aren't working with a custom color. You can also have the part powdercoated, although it will add some significant thickess to the part.