a central housing is provided in a generally rectilinear configuration . the central housing has a horizontal open top , a horizontal open bottom and side walls . a horizontal divider panel is provided between the top and the bottom . a plurality of interchangeable upper components is chosen from the class of upper components . the class of upper components include a cover , a seat , a small planter and a large planter . the upper components are adapted to be selectively positioned on the open top and depend into the upper component . a plurality of lower components is chosen from the class of lower components . the class of lower components includes a base and casters . the base is adapted to receive and support the bottom of the housing . a lateral opening in the housing is provided adjacent to the bottom for storage of selected upper components .