A fun bookmark my boss gave me for my birthday - together with other stuff. It's a plastic butterfly-shaped clip bookmark.
According to the “Butterflies” chapter in Kwaidan: Stories and Studies of Strange Things, by Lafcadio Hearn, a butterfly is seen as the personification of a person's soul; whether they be living, dying, or already dead. In the Philippines, a superstition says that if a butterfly enters your house, the person whom you most love is coming to see you. However, large numbers of butterflies are viewed as bad omens.