I have seen them in two places: Parfümerie Douglas and Parfümerie Kobberger, the latter of which is located in Frankfurt, so that obviously does not help you. There are several Parfümerie Douglas locations in Munich. You can find their locations here. In the search box in the middle of the page, type in "München" and click on "Suche starten". If you cannot make it out, shoot me a PM, and I can will help you with the German.
Be sure to visit the Manufactum in Munich too. The address can be found here.
Ive seen them a few years ago at Kamm Wenninger at the Viktualienmarkt. Not sure, if they still have them, but probably they will. http://www.mux.de/Kamm-Weninger