Here are some slogans used by famous institutions that have failed or have been bought over due to impending failure (Source: Economist)

AIG - "The strength to be there"
Lehman Brothers - "where vision gets built"
IndyMac - "you can count on us"
Fortis - "here today, where tomorrow?"
Enron  - "ask why"
Countrywide  - "lender that actually finds ways to make loans"
Fannie Mae - "the American dream grows, so do we"
Washington Mutual - "Whoo hoo"