Prep box as needed.
Using hot glue, attach the fabric along the long inner edge of the cardboard box. Start along the inside bottom of the box.
Carefully wrap the fabric around the edge of the box until all surfaces are covered except for two edges. There should be excess fabric around the remaining uncovered edges.
Cut the fabric to cover the exterior corners and have a strip remaining to cover the remaining uncovered edges.
Cut a piece of heavy cardstock to the shape of the bottom of the box and lay in place – securing with hot glue.
Using a grommet kit, install two grommets on the front face of the box to allow for a handle.
Thread the twine through the grommets and braid the twine to create the handle. Thread through the other grommet and secure.