According to some embodiments, a basket that converts to a picnic mat is disclosed. The picnic basket includes a planar material comprised of equally sized panels arranged in a three-row by six-column configuration and a support strap system. The support strap system is disposed across a column next to a first edge column wherein the support strap system is centered between the first pocket and the second pocket by folding the column three columns from the first edge column and two columns from the second edge column over the column next to a first edge column.

A flat-folding box cover with magnets on one edge of the side panels that align with magnets of the opposite polarity on flaps of the adjacent side panel to hold the box into position is provided. The flat-folding box includes a top panel with aperture and four side panels that when assembled fits over the top of a tissue or other box. The portions of the side panels that form the inside of the box are lined with material to protect the magnets.

The box covers may be sold finished from a seller. In another case, consumers may select from a set of options provided by a seller for the box cover design. In another case, the consumer may supply the seller with custom artifacts such as photos or artwork which the seller would incorporate into the finished box cover. Kits may also be sold allowing the purchaser to customize the box cover themselves.

A foldable box convertible between an erect, assembled configuration and an open, flattened configuration is provided. The foldable box includes a base panel having at least four edges, a plurality of side panels, a plurality of connector panels, and a plurality of releasable fastener mechanisms to securely fasten adjacent side panels together. Each of the side panels has a proximal edge, a distal edge, and a pair of opposite side edges between the proximal and distal edges. The proximal edge of each side panel is hingedly connected to a respective one of the edges of the base panel. Each of the connector panels is configured to couple adjacent side panels. In particular, each of the connector panels is configured to inwardly bias to fold toward an interior of the foldable box in response to the foldable box being converted from the open, flattened configuration toward the erect, assembled configuration.