Mustache wax is not available to the general public. One day you will be walking down the street and a well dressed older gentleman will approach you and hand you a card that appears to made out of graphite. On it will be an address. It will invariably be for a basement with a heavy rich wooden door, a wrought iron railing, and stone stairs. At the door you will be requested to present the card and your mustache is inspected. Within you will find waxes ranging from the exotic to the everyday with a variety of scents, hand carved miniature grooming devices, and shears forged of Damascus steel.
They will accept no payment other than the card you've been given, and you are expected to take only that which you require. Should you return, you'll find the location boarded up and long abandoned.