Some of the sites I came across had a 100 pc minimum order. You can buy individual ones thru Deal Extreme. Most of their stuff ships directly from China, so it's about 1 month wait. If you are ordering for Christmas, order early. I had one package get lost in transit. They reshipped but it took a couple of months to get it.
http://www.dx.com/s/decorative+flash+drives
http://www.nancysnotions.com/product...thumb+drive.do