Near SLC, UT where I grew up, there is a nearby Wyoming border town called Evanston. With liquor laws being as they are in Utah, the rebellious utah youth were forced to make the drive to Evanston to procure things like kegs of beer, malt liquor, and illicit fireworks.
for some reason Evanston was always pronounced "Evingston".
History repeats itself. I moved to the Pac NW 12 years ago. There is a coastal Oregon (Or-eh-gun, not Or-a-GAHN, BTW) town called Warrenton. I always seem to hear it pronounced "Warrington" for some fool reason.
There is a popular Portland brewery called Widmer Bros. You will almost always hear someone at the bar order a "Wind-meer".
I used to work for a brewpub chain called McMenamins. People are always saying "McMenimums".