The Biggest Balloon EVER

Take a clear lightweight (1ml.or less) tarp that is rectangular in shape. 9'by12' or larger if possible. fold the 9' into 4 1/2' so you still have a 12 foot section. tape along the 4 1/2 foot section so the tarp will look like a cylinder when it is finished. Now tie one end of the cylinder. with a leaf blower, compressor or exhaust of a vacuum blow into the open end. When full tie off that end and you have yourself a huge balloon. Wonderful to play with in a light wind. Caution: Must be done with adult supervision as tarp can smother.