This is the best and simplest mechanical item to appear since the Dove Pan! Personally, I’ve been using one for over 10 years, but I’ve never sold it until recently.
Show the red can empty, fill it with a string of silks, then cover it with the top. When you remove the top, the silks have changed into a blendo silk, a rubber chicken, or anything else that will fit inside the load chamber. It works much like a dove pan, just a different shape. With a little pushing, it will even hold a 50-foot silk streamer!