Safety champagne cork

A molded tethered safety closure device comprising a closure element adapted to close the mouth of a bottle or the like by frictional engagement with the interior facing surface of the mouth, a retainer collar, and an intercoupling means connecting said collar to said closure element and forming a unitary structure with said closure element and said collar, said intercoupling means comprising a tabbed tear strip and a tether strip, said tear strip and said tether strip being integrally formed in a helical configuration extending in a plurality of turns from said closure element to said collar, said tether strip and said tear strip being joined by a pair of frangible webs of a preselected thickness to permit said tear strip to be manually removed, leaving said helical tether strip interconnecting said closure element and said retainer collar thus restraining said closure element from flying free of the bottle or the like when removed therefrom.