An aerial advertising device for providing predictable and consistent oscillations to a banner towed behind an aircraft. The aerial advertising device may be disposed at the bottom of the leading edge of a banner. The device may generally comprise a weight box disposed above a wind box. The device may be rotatable about the leading edge or extension, wherein the range of motion of such rotation may be limited by a restriction arm preventing further motion of the device relative to the leading edge. Such rotation may allow the inside walls of the wind box to transfer the applied wind force to the rotation of the device and thereby the rotation of the leading edge of the banner. The weight box may further comprise a horizontal translation arm upon which a slidable weight may slide as the translation arm is moved into greater angular positions relative to horizontal.