For example something like this but less expensive.Don't follow you on what you mean non-chipping. Only way they would flake or chip, is if the fixture is cheap. Most garages use a couple overhead plastic or porcelain light fixtures attached to a junction box, or overhead florescent fixtures that use 2 to 4 tubes.
Plastic would work for a few years, but personally, I would look for a good quality powder coated fixture, or brass. Also keep in mind, the nature of the neighborhood you live in. You do not want to put up a fixture on a house that is in a high end neighborhood, that should belong on a home in the lower priced section.