According to a tweet from MLB.com writer Anthony Castrovince yesterday, a fan felt so inclined as to mail Cliff Lee their fingernail clippings. I'm sure a celebrity/athlete has been mailed much stranger things before, but it's safe to say this is probably the weirdest/grossest thing Lee has ever been sent.
Tidbit from #Phillies camp today: Somebody mailed Cliff Lee their fingernail clippings. The perks of celebrity. #FanNail