Abstract: Apparatuses for supporting flexible bags have been developed which apparatuses have, in one aspect, a side wall member, preferably of cylindrical or conical shape, with an interlocking device including an opening in one end of the side wall member for receiving and holding an interlocking tab on the other end of the side wall member, and one or more exterior lateral projections or anchors for holding a portion of the bag. In one aspect a portion of a bag supported within an upright structure formed with the support has a portion looped under the interlocking tab exteriorly of the upright structure.