A company in South Korea will gold-plate your child's umbilical cord and frame it for display. Link (second image down on the page.) (Thanks, Isaac)
Reader Andrew says, "Koreans have been keeping umbilical cords for centuries (Link)
and recently they have used umbilical cord to help a paralysed woman walk again (Link). There are other medical uses for the umbilical cords (Link). My Korean girlfriend says her mum still has her umbilical cord, and she's 23!"