Thule's Nail trick
This is the original version of the bending nail effect, the brainchild of Yves Doumergue and Jean-Phillipe Halm from France. There have been many copies of this precision-crafted gimmick, but none of them ever equaled the original. Even looking extremely close right at the gimmick, you will not see a thing!
EFFECT: Commenting that he would like to try an experiment involving his psychic skills, the magician displays an honest to goodness iron nail which may be examined by the audience. The magician states that he has the ability to make metal as soft as a marsmallow and places the nail inside a soft plastic tube to "protect the audience from the intense heat coming from his mind." Holding the nail at the ends, the magician concentrates on the nail and is proceeds to slowly bend to almost an 80 degree angle! The magician then bends the nail back to its original condition and can immediately hand it out along with the tube for examination!