Goro Motai pointed me to this collaboration between Muji and Lego to augment plastic building blocks with papercraft figures. Using a custom paper puncher, sheets of construction paper can be made to clip onto the plastic nubs on regular lego blocks. Although the construction paper is treated as a flat medium, this merging of 2D and 3D craft could combine folded paper origami to greatly expand the sculptural expression of ho-hum building blocks.