Create digital scrapbooks
www.scrapbook-bytes.com

Send high-resolution photos to www.gallerystreet.com and have them made into almost anything (scarves, tablecloths, shower curtains)

Create confetti
www.photofetti.com

Picture postage
www.zazzle.com

Create Andy Warhol-like artwork of your photos
www.photocrazed.com

Turn your photos into a 130-piece puzzle
www.imagestation.com