Color Changing Feather Wreaths

Three white feather wreaths are shown. One at atime they are placed in a black bag with a hole in the center. A silk is placed in the hole. When the wreath is removed, it has changed the color of the silk. Then all three wreaths are placed in the bag. Three silks are placed in the hole. When removed, nothing happens? The wreaths are tossed in the air and visibly become one giant multi colored wreath! Includes bag, wreaths and silks.