I have a Mika pocket holster for my PM9 that I like very much. I've got Mika pocket holsters for all my CC guns. They're about $19 including shipping. Mika usually gets them to me in about a week or so.
Amen to Mika. I would not use any other pocket holster. I use one for a Smith 642, and could not be happier. Great holster, and great people to order from.
Y.D.