A feather plume is placed into a paper tube. The claim is made that it changes color while in the tube. While still in the tube, the magician announces that the feather plume has changed back to its original color. The audience wants to see proof that the feather changes. The feather is placed back into the tube, and comes out as a different color. This time the audience thinks there is a second feather still in the tube. At last the tube is opened to show a feather plume of a totally different color!