Whether the introverted vis-arts student or the quirky Andy Warhol archetype, young artists come in more shapes and sizes than a bundle of paintbrushes. This makes the gift-giving crusade potentially arduous for those short on cash and time, hoping to find that gem among a slew of Wal-Mart trinkets. However, Zazzle.com’s take on the do-it-yourself movement comes in an array of products easily tailored to individual taste: From a T-shirt emblazoned with the giftees’ original comic-strip creation to a canvas bag bedecked in an avant-garde Photoshop design, the Web site provides endless possibilities in memorializing that night of binge drinking with your roommate — most obviously, hand him a hat festooned with a photo of his own disheveled visage. A straightforward uploading process makes it more than possible to give friends the gift that never stops giving: humiliation.