School Charity Project - Help!

[Alisaurus]

Me and a schoolfriend are part of a project to raise money for an orphanage in Tanzania. We have decided to raise money by auctioning and/or raffling off autographs, but in all honesty, haven't the foggiest where to start!
We have a very small budget, and would like to recieve as many replies as possible.
Obviously, the ideal would be emailing celebrities, as this will be the cheapest option, allowing us to gain maximum profit for our charity, but I know many don't send genuine autographs out in response to emails.
I also have read that you have to send a photo and a SASE with your request, but this could work out quite expensive for the amount of autographs we aim to get.

Any suggestions would be greatly appreciated, as would tips on how to organise our auction/raffle.

[Jaffer]

I am not sure what country you live in, but if your English, a lot of EPL clubs have a "contact us" section, where I am sure fi you asked nicely, they would donate some things for your auction! I also know that Kim Kardashian sends out authentic autos via email!