Why do some twitter DP's have lemons?

[innocentluminere]

Why do some users have little pictures of lemons on their display names, on Twitter? Like Peter Facinelli (http://twitter.com/peterfacinelli) ?

Does anyone know? I am just interested...

>.<

[Megan]

okay i know this its because of something called 'alex's lemonade' or something like that.

basically it is like a charity that they support or something, all set up by a lemonade stand to raise money for cancer or something like that

check oout the website

http://www.alexslemonade.org/