It can be done. Not much to worry about either since odometer tampering is only a federal crime if the car is newer than 10 model years. Records aren't kept longer than this anyways.
You might not like the answer, but it's the truth. Mileage is a pretty worthless way to judge a car's condition anyways.
Carmine F.
Owner of a '93 5th Ave w/191,000 untouched miles.