"Have you been up in my Wishing Tree...? Its where i come to think and dream, And now i'd like to show you my, wishing tree *SHAMONE* Where we can laugh and giggle and scream *EEE HEE!*...
(Taken from South Park, "The Jeffersons")
A large cocktail made from all the bodily fluids that one human body has produced. When ingested, it summons Kolgorathnokterranonklus, Great God of Immoral wishes. Once he appears, you may petition him to grant your most "unconventional" wish (e.g. sex with a cousin, eradication of the banana minority, etc.). Beware, though, for the granting of this wish will come with no unintended consequences--except the occasional appearance of a small child's face on one's elbows.
A star that everyone is familiar with and gives false hope to people on their knees, but never grants any wishes because it is owned by Disney.
Disney owned the Wishing Star ever since the release of Pinocchio, and many other Happiness-related items.
The Wishing Star does exist outside of Fairy Tales! You'll find a shimmer of it inside of Disney theme parks for at least $73 per person as of September 29 2010.