Sporting a large moustache myself for over 30 years I know exactly what you are seeking. However, such an item is nearly unknown today. Look up moustache cup or mug with any search engine and you are either looking at antiques or plain white mugs that have black designs of different moustache styles on the sides so that the 'stache is superimposed over the person's face as they sip their coffee.

The actual design of the mugs themselves were not just to keep the moustache clean (from touching the beverage) but to keep the drink from wicking out past the cup on the sides and dripping down on the gentleman's clothing.

The design of the modern insulated coffee mug with the little flip open/closed drinking port essentially does the same thing (keeping folks from spilling their coffee down their faces while driving, etc.). Most men that have large "cookie dusters" have learned to drink from almost any cup without problem or if it is critical, use a straw (iced drinks can be a real problem as you can't control for the unpredictability of the liquid around floating ice cubes).

You can also buy small plastic insert to go in the mouth of a nalgene water bottle nowadays that does the same thing. I don't think people know they are using the technology developed over a century ago for the moustached gentleman.

So if you are really heart set on getting a true moustache mug I would suggest going to a potter and having one made just for the occasion - how cool is that!

I talked with Barbara Dunshee, a Seattle potter, a short while ago and she is certainly willing to make a real moustache mug for you to your specifications (size, handle style, glaze, etc.) for a price in the $30-40 range. If you are interested contact her:

Barbara Dunshee
1060 26th Ave East
Seattle, WA 98112
206-229-3311

http://www.bdpottery.com/contact.htm