Abstract: A cap adapted to be secured to an open end of a container employs a vertical hollow cylinder provided with an open lower end adapted to be secured to the open end of the container and a closed upper end with a small centrally disposed first opening therein surrounded by a raised peripheral first lip. The cylinder upper end has a second peripheral lip extending upwardly above the first lip, the second lip having first and second oppositely disposed cut out regions communicating with the cylinder upper end. A first horizontally elongated flexible member has first and second opposite ends each of which is aligned with the corresponding one of the first and second regions and is disposed between the first and second lips. The first member has a flat top surface and a downwardly depending extension which slidably engages the first lip. The extension in a horizontal plane defines a FIG. 8 with left hand and right hand sections.