A container includes a bowl having a bowl interior space for holding solid material and a bowl opening for accessing the interior space of the bowl from an exterior of the bowl. The container also includes a bowl support having a bowl support interior space within which the bowl is located and a bowl support opening for accessing the interior space of the bowl support from an exterior of the container. The bowl is biased toward an upright orientation of the bowl independent of the rotational orientation of the bowl support. The bowl support opening overlies the bowl opening when both the bowl and the bowl support are in respective upright orientations, and the bowl support covers the bowl openings when the bowl support is tilted.