Clear Production Flatland (2 Umbrella) by Mr. Magic - Trick
Unroll a scroll of clear plastic and hold it in front of you - you can easily be seen through its transparent surface. Roll it up, reach inside, and pull out a colorful umbrella that instantly opens up! Then pull out a SECOND opened umbrella (you can unroll it and roll it up again if desired) to the audience's delight and amazement!
Totally baffling - an audience pleaser!