I’ve got three I use a lot:
A strange one with Dilbert at a meeting thinking “Why is my mug never very clever?”
A souvenir mug of “Cody Wyoming - Entrance to Yellowstone” with a moose and bear.
Starbucks (I bought it because you get a slight discount, but then you’d have to drag a dirty cup around, so I just use it at home.)
My favorite is one that my son bought me for my birthday. It has 1953 on it, set up like newspaper clippings with news items that happened that year.
To the younger whippersnappers, YES, it is in black and white. 
At work I have my “Ask Dr. Science” mug (from Duck’s Breath Mystery Theatre): the part facing the rest of the world states emphatically “I KNOW MORE THAN YOU DO.”
I alternate that with my Grateful Dead mug - a scene of bears, a crow and terripins in silhouette dancing in the twilight - and one with the periodic table of the elements.
[Someone broke my favorite - Chernebog the demon from “Night on Bald Mountain” from “Fantasia”. I can’t get that one anymore. <grrrr>]
At home, I have my coffee mugs from different Shakespeare Festivals I have attended across the US (haven’t made it into Canada for one yet). Those and the ones that Roommate brings back as souvenirs from driving cross-country.
Mine says ‘Chris’.
Underneath my name it proudly proclaims- ‘HERSHEYS Chocolate World’.
Interesting because I’ve never been there and am not a huge fan of chocolate, especially that ersatz shit that HERSHEYS produces. God forbid this ever does turn into a HERSHEYS world.
One further thought- One of the days, I’m going to find one of those God Dammed trinket displays that doesn’t have my name stamped on half the shit in the display and… well… that will never happen.
I mean, C’mon, it’s disheartening having your name mass produced and emblazoning pieces of shit from coast to coast and around the globe.
WOW! Found a mug that I thought was gone forever - it has all the main Animaniac characters. 
:dance of joy and thankfulness:
Hey CnoteChris - try having a name that you will never find anywhere personalized on a mug or keychain 
The worst is when your name is nearly too rare to find.
My XGF Terri searched every one of those racks.
When she eventually found her name I always had to buy whatever crappy thing it was on, which would end up in the back of the closet floor the next day.
My mug is plain blue and written on it is the phrase, “Who are you and what do you want?”
Sums up my personality nicely.
It says “Strasburg Railroad” with a drawing of a steam locomotive coming straight at you. And it has my name on it so nobody else can use it. Bwahahahaha.
The one I actually use at work has a company logo on it. I have a collection at home, though. All sorts of stuff. Cats, flowers, fish, smart-ass sayings…my favorite says “It used to be this was a man’s world and a woman’s place was in the home. They can kiss that shit goodbye.” It has a picture of the woman leaving the house, with the man standing there holding the baby, with a basket of laundry at his feet. It was a gift from a friend.
Coffee? Bleah!
I have two that I use alot:
Comfort Suites, Denver South
and
SunRidge Farms, Falcon Trading Company, Inc., Santa Cruz, California
I like 'em 'cause they are large capacity and have big handles I can get three fingers through.
Mine is painted to look like a mug full of beer, and says “wishful thinking”.
I had one that said ‘Awake and Cranky’
I make my own mugs. I make my own pottery, have a wheel and kilns.
I do have some “souvenier” mugs, but they are too precious to use! (I had to pay money for them, after all!) So I keep my commercially-made souvenier mugs on “display”. One of them is a See’s Candies mug. OK, so it’s not that “precious”, but I don’t think I could find it anymore, so I don’t use it.
The one I use a lot is a stoneware mug, will hold about 20 oz. It has a floral design on the outside, and a burgundy-colored glaze on the inside. It has some glaze flaws, that’s why I use it. (I usually try to sell the mugs that are not flawed!) I also use a large “tumbler” (no handle). It is made with a stoneware porcelain-like clay, has a floral design on the outside, and a mottled blue-green glaze on the inside. I didn’t sell it because it isn’t very pretty. But it holds a lot of water!
[Edited by slythe on 09-25-2000 at 07:50 PM]
Mine’s from the 1984 Los Angeles Olympics where I worked as a security guard for a month.
At work I use a plain white cup. I write what
I want to on it with felt marker that washes out.
At home I drink tea in my Weight Watchers cup, and
cocoa from my Phantom in the Opera cup. It has
a grey mask that turns white when it gets hot.
My kids got me the one I use at home a few years ago. It says “Major League Dad”. The one I use at work is some thing I got free someplace. Has a horse on it.
My favourite mug was the one I broke a couple of years ago, and really want to replace. It’s the Far Side cartoon of a boy pushing on a door clearly marked “Pull” and the building is labelled “Midvale School for the Gifted”.
My other fave is one that my family hates. It’s an ugly guy sitting on the toilet, and the caption reads “Coffee gets you going”.
My mug is decorated with a Fred cartoon. The caption is “Fred and Penelope liked to experiment with different paint techniques”. The cartoon depicts Fred and Penelope in front of a wall covered in regularly spaced buttock prints. Fred is applying fresh paint to Penelope’s buttocks.
That description doesn’t really do it justice.
My work cup has an message from a plastics supply vendor about how far they have come since their creation in 1968. Which I keep simply because I got it on my first engineering job ever, and 1968 is a special year for me.