Sure, it's called doing something called "having fun". A remarkable concept, right?
Billy Crystal is a diehard, lifelong fan of the Yankees and the Yankees' organization (prompted by Yankees' Captain, Derek Jeter) decided to reward Billy by making him an "official" Yankee for a day. So, they signed Billy to a one day minor league pact and gave him one official at-bat during a previously uneventful exhibition game. Crystal was the starting DH in the game. He wore number 60 to signify his 60 years on this planet.
During the offseason, Jeter had asked what he might've wanted for his 60th birthday and Crystal said something along the lines of wanting at least one at-bat as a NY Yankee. Jeter, of course, made it happen.
I warn you, this trend of "having fun" might circulate throughout MLB, so watch out.