Tide in the Middle Magic Rope Trick

A rope is placed in a change bag. You tell the audience that you are going to make the rope become tied in the middle. Then when you remove the rope from the bag, there is a detergent box in the middle of it. Then the magic happens when you show the bag empty. Wonderful for a change bag or tote bag routine. If you are on a budget you can get a good laugh without doing any magic with a regular paper bag.