This is a mildly amusing list of oxymorons and words that just plain don't belong together. I thought the last one was great!
ACCORDION MUSIC
ACCURATE ESTIMATE
ACUTE DULLNESS
ACT NATURALLY
ADVANCED BEGINNER
AGING YUPPIE
ANARCHY RULES
ARMY INTELLIGENCE
ARTIFICIAL GRASS
ARTIFICIAL INTELLIGENCE
ATHLETIC SCHOLARSHIP
AUTHENTIC REPLICA
BABY GRAND
BALDING HAIR
BANKRUPT MILLIONAIRE
BIGGER HALF
BITTER SWEET
BLACK GOLD
BLACK LIGHT
BOY BANDS WITH INSTRUMENTS
BRIEF LEGAL DESCRIPTION
BUSINESS ETHICS
CAFETERIA FOOD
CALIFORNIA EXPRESSWAY
CARDINAL SIN
CASUAL INTIMACY
CHEAP GAS
CLEARLY AMBIGUOUS
CLEARLY CONFUSED
CLEARLY MISUNDERSTOOD
COMMON SENSE
CONSTANT CHANGE
DEAFENING SILENCE
DELIBERATE MISTAKE
DIVORCE COURT
DODGE RAM
DRY BEER
DULL ROAR
ELEMENTARY CALCULUS
EVEN ODDS
EXTINCT LIFE
FEATHERWEIGHT
FELLOW WOMEN
FOUND MISSING
FREEZER BURN
FRIENDLY FIRE
GENUINE FAKE
GREAT DEPRESSION
HALF EMPTY
HALF FULL
HARD WATER
HOLY WAR
HOPELESSLY OPTIMISTIC
INCREASING DECLINES
JUMBO SHRIMP
JUSTIFIABLY PARANOID
MANDATORY OPTIONS
MEATLESS HAMBURGER
MILITARY INTELLIGENCE
MINOR CRISES
MINOR DISASTER
NEAR MISS
NON-WORKING MOTHER
NORMAL DEVIATION
OBJECTIVE OPINION
ONLY OPTION
OPERATING SYSTEM
PAID VOLUNTEER
RAP MUSIC
RELIGIOUS FACT
ROLLING STOP
RUSH HOUR
SAFE SEX
SCENTED DEODORANT
SOFT ROCK
WAR GAMES
WHITE CHOCOLATE
WHOLESOME
WIRELESS CABLE TV
12 OUNCE POUND CAKE
AND, THE NUMBER ONE OXYMORON:
MICROSOFT WORKS
ACCORDION MUSIC
ACCURATE ESTIMATE
ACUTE DULLNESS
ACT NATURALLY
ADVANCED BEGINNER
AGING YUPPIE
ANARCHY RULES
ARMY INTELLIGENCE
ARTIFICIAL GRASS
ARTIFICIAL INTELLIGENCE
ATHLETIC SCHOLARSHIP
AUTHENTIC REPLICA
BABY GRAND
BALDING HAIR
BANKRUPT MILLIONAIRE
BIGGER HALF
BITTER SWEET
BLACK GOLD
BLACK LIGHT
BOY BANDS WITH INSTRUMENTS
BRIEF LEGAL DESCRIPTION
BUSINESS ETHICS
CAFETERIA FOOD
CALIFORNIA EXPRESSWAY
CARDINAL SIN
CASUAL INTIMACY
CHEAP GAS
CLEARLY AMBIGUOUS
CLEARLY CONFUSED
CLEARLY MISUNDERSTOOD
COMMON SENSE
CONSTANT CHANGE
DEAFENING SILENCE
DELIBERATE MISTAKE
DIVORCE COURT
DODGE RAM
DRY BEER
DULL ROAR
ELEMENTARY CALCULUS
EVEN ODDS
EXTINCT LIFE
FEATHERWEIGHT
FELLOW WOMEN
FOUND MISSING
FREEZER BURN
FRIENDLY FIRE
GENUINE FAKE
GREAT DEPRESSION
HALF EMPTY
HALF FULL
HARD WATER
HOLY WAR
HOPELESSLY OPTIMISTIC
INCREASING DECLINES
JUMBO SHRIMP
JUSTIFIABLY PARANOID
MANDATORY OPTIONS
MEATLESS HAMBURGER
MILITARY INTELLIGENCE
MINOR CRISES
MINOR DISASTER
NEAR MISS
NON-WORKING MOTHER
NORMAL DEVIATION
OBJECTIVE OPINION
ONLY OPTION
OPERATING SYSTEM
PAID VOLUNTEER
RAP MUSIC
RELIGIOUS FACT
ROLLING STOP
RUSH HOUR
SAFE SEX
SCENTED DEODORANT
SOFT ROCK
WAR GAMES
WHITE CHOCOLATE
WHOLESOME
WIRELESS CABLE TV
12 OUNCE POUND CAKE
AND, THE NUMBER ONE OXYMORON:
MICROSOFT WORKS