Average cost of 30-second spot: $850,000
Fumble: Cola for the body-conscious? What could go wrong? The thought was that, if Pepsi's caramel coloring and caffeine were removed, it'd be a ''healthy'' alternative to standard sodas. For the ad, they couple this new twist on an old favorite with ''Right Now,'' a zeitgeisty hit by Van Halen in the prime of their Sammy Hagar era. The only problem? Crystal Pepsi clearly tasted terrible.
The final score: Pepsi discontinued production months later, and Crystal Pepsi was a quaint, ''New Coke''-style relic of the past by 1994.

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