An amusement device including a cylindrical liquid container which appears to be either filled or empty upon rotation of the container. In one embodiment, a toy tank truck has a rotatable tank portion which includes an outer cylindrical wall and an inner cylindrical wall spaced from the outer wall to define a limited volume of space. A liquid reservoir is mounted on a portion of the outer wall whereby the reservoir may be above the limited volume of space in a fill position and below the limited volume of space in a drain position, upon rotation of the tank. Several reservoirs may be provided and each reservoir can include scoops to facilitate storage of the liquid in the reservoir.
