The grand-prize winner in Altoids' Tin Million Uses competition was Jon Lennon of Ithaca, N.Y., who turned a Ginger Altoids tin into a theremin, a device that uses light to generate sound.
Burt van der Klute of Fayetteville, N.C., turned his Altoids tin into a Morse code reader.
Marcy Merill, a teacher from Tokeland, Wash., used several Altoids tins to make a pinhole camera.
Philip Haley impressed judges by turning an Altoids Ginger tin into a portable protective case for an MP3 player.
Earlier this year, in an invention not directly related to the Tin Million Uses contest, MIT grad Limor Fried decided to build an MP3 player using an Altoids tin as the case.