Abstract: A three-dimensional figure made from an inflatable, sculptured envelope of soft pliable material into which is blown a constant flow of ambient air wherein said flow of ambient air can be modulated or reversed to cause a lifelike movement of the sculptured figure. The inflatable envelope can be attached to the face of a billboard to create a three-dimensional display which can be quickly assembled or dismantled. The structure can tolerate substantial leakage of air from the envelope along seam lines, through the pliable material fabric or small puncture holes.