Doctors Without Borders

I want to raise money for Doctors Without Borders (Medisans san Frontiere) for an auction that is being held at a concert. This auction is for a back stage pass with all money raised going to the charity. I care more about the charity than the passes, but I can't donate others money and get the tax formes for them. Any ideas of what to sell or how to raise about 5 grand? I am doing ebay. I need it raised by november.