...other than reading TMoMD, that is.
Check out The Surrealist for some completely randomly generated fun. Kevan Davis and Holly Gramazio have created a site full of word toys to keep you out of trouble for at least fifteen minutes.
Most of the "toys" on the site are the type of mindless amusements that allow you to input any sort of noun and have it inserted into a randomly selected advertising slogan, movie quote or trivia fact.
For you Livejournal users, there are also a couple of generators that allow you to input your LJ screen name, or that of a friend, and get, for example, a dungeon adventure using your interests and LJ friends.
Here's a few that I got.
From The Advertising Slogan Generator:
Promise Her Anything, But Give Her Matt DeBlass
Every Kiss Begins With Matt DeBlass
If Only Everything In Life Was As Reliable As Matt DeBlass
Just Do Matt DeBlass
And from The Movie Quote Generator:
"This Matt DeBlass attracts Those We Do Not Speak Of. You must bury it."
"You had me at 'Matt DeBlass'"
"No Mr. Bond, I expect Matt DeBlass to die."
"When there's no more room in Hell, the Matt DeBlass will walk the earth."
Of course, you can use any noun you want, but your own name is usually the funniest.
There are a number of things to play with on The Surrealist web site. If you're looking for a time waster, or something obnoxious to post on your home page (they very considerately give you html code for the results) it's good fun