Abstract: The invention comprises a plurality of rectangular prism and/or cubic blocks. The sidewalls of the blocks comprise various combinations of grooves and/or pegs. Each groove extends along the respective sidewall within which it is disposed, from a corner wherein the top wall and the respective sidewall intersect to a corner wherein the bottom wall and the respective sidewall intersect. Each peg is configured to be slidably received into a groove disposed on another block within the plurality of blocks.

Abstract: The present invention relates to a clip apparatus adapted to receive and engage a sheet of material such as paper, cardboard, plastic, film, posters or any other material that comes in sheet form. The invention includes a clip assembly having a first arm and a second arm and a plurality of fins that are disposed on an inner surface of the arms that are adapted to receive and engage the sheet of material inserted between the arms. Two or more clips apparatuses can be interconnected by a support member so that the sheet material can be used to create a structure.