The pig, and pigskin for that matter, has played a central role in Delvoye's ouevre over recent years. The earliest tattooed skins date from 1994, and were first exhibited at Galerie Tanit in Munich in 1995. Since then the artist has continued to tattoo live pigs as well as stuffed or stretched skins. Delvoye's use of the tattoo seems to represent a sense of belonging as well as of distinction; often referencing the Hell's Angels and other "bad boys." When Delvoye tattooed his pigs, he derived his imagery from the traditional iconography of Harley Davidson logos, lovers' names, bleeding hearts and similar low-brow motifs" (Y. Fonci, "Cloaca: receptacle of connotations, producer of ... well, meanings" in Wim Delvoye. Cloaca, Amsterdam 2000, p. 7-30).