Along with Odin, Frey was one of the gods associated with human sacrifice during the late Viking age. Yuck. (Source: Davidson, Hilda Roderick Ellis. Myths and Symbols in Pagan Europe: Early Scandanavian and Celtic Religions. Manchester University Press, 1999: 55.)

Forget the tooth fairy! The Aesir gods gave Frey the entire Elf-Realm as a "tooth-gift." This part of Frey's myth is based on the medieval Scandinavian custom of tannfé, which is basically giving a gift to a child whose first tooth is coming in. Usually the kid gets money, but hey, Frey will take an Elf-Realm any day. (Source: Cleasby, Richard and Gudbrand Vigfusson. An Icelandic-English Dictionary, 2nd. ed, ed. William A. Craigie. Oxford University Press, 1957: s.v. tannfé.)

The name of Frey’s magical fold-up ship, Skiðblaðnir, literally means "assembled from thin pieces of wood." Doesn't sound so magical to us... (Source: Simek, Rudolf. Dictionary of Northern Mythology, trans. Angela Hall. D.S. Brewer, 2007: s.v. Skiðblaðnir.)

Frey’s ride-able boar, Gullinbursti, whose bristles glow in the dark, was made by the dwarves Sindri and Brokkr from a dried-out pigskin. Dee-lish. (Source: Snorri Sturluson, Prose Edda, Skaldskaparmal.)