charity auction for Wish Upon A Hero

[LadyBakon]

We are doing a Wish Upon A Hero Gala in November with a celebrity silent auction. We do have some items already but I am really torn on putting a SASE with the letters. As a non-profit just a SASE can get costly when there are multiple letters going out. I also understand probably not even half the celebs will donate to charities.
Has anyone had any success with just mailing a letter on the organization letterhead?

Thanks!

[Acorns]

Hey there, i had a few replies from sending no S.A.E but i got loads with S.A.E
Good luck with your charity {thumb2}

[aamir]

Try Geoffrey Rush, Amanda Seyfried, or most football players. You won't need a stamped SAE.

[rdhjets1012]

i know these people you can just send a letter:
andre agassi
Guy Lafleur
kelly ripa
oprah
Troy Aikman
Oscar Robertson
Arnold Palmer
Ronnie Lott
Dirk Nowitzki
Jim Tressel
Jim Craig
Dolph Schayes
Bill Gates