Do you mean a Star Model B or a Star Model BM?
I have a Model B. A 1911 holster will work, except for a molded plastic one like a Kydex, which of course have to fit every relavent part of the gun exactly. I think a BM is smaller, might work with a Commander holster. Try it before buying.
Hey I just got my oil-soaked grips, which I thought were throwaways, fixed up nicer than new. If he's got similar grips, let me know and I'll pass on the boring details of how I did it.