If you have the time, call around and see if you get anyone to donate items...Large companies or golf courses, hair salons, etc. love PR and they will only ask that you put their name somewhere on the package.
Who are you targeting? Scrapbooking baskets go over great, Archivers has clearance stuff all the time, or Michaels or Joanne Fabrics has low price itmes, jsut pick up some paper, a scissors or two, stickers, pens, etc.
Alcohol- or drink mixes
Barnes and Noble gift certificate w/a bottle of wine
Cleaning supplies (name brand items)
Another hot item are those USB sticks, if its for men, who wouldnt love a basket full of computer related items.
Get creative, you may even have things at home that are new and unused that you can put in the basket. You dont always have to spend a lot of money.