Abstract: A building block system may include different types of blocks. One type of block may include male and female attachment points. The male and female attachment points may have complementary shapes and sizes to enable easy interconnection. The blocks may be manufactured from a foam material, such that when male and female attachment points of different blocks are joined, a connection suitable for a degree of structural integrity is attained. A cavity may be formed in the center of each block for the placement of coins, pebbles, or other objects to add weight to the overall assembly. The building block system may also include cap pieces, in which a pair of cap pieces may be inserted into female attachment point(s) on a block, and a graphic card made of a thin material, such as cardstock, may be inserted therein.

Abstract: Modular systems for the construction of three-dimensional structures are disclosed. A system includes a first panel, a second panel, and a fixing member. The first panel includes a first edge and a first attachment member. The second panel includes a second edge and a second attachment member. The second edge is configured to mate with the first edge of the first panel. This mating forms a hinge that couples the first and the second panels and enables a relative rotation about a rotation axis through the hinge. The relative rotation defines a relative angle between the first and the second panels. The fixing member is configured to couple to each of the first and the second attachment members when the relative angle between the first and the second panels is equivalent to a first angle, fixing the relative angle at the first angle and forming the structure.

Abstract: Modular systems for the construction of three-dimensional structures are disclosed. A system includes a first panel, a second panel, and a fixing member. The first panel includes a first edge and a first attachment member. The second panel includes a second edge and a second attachment member. The second edge is configured to mate with the first edge of the first panel. This mating forms a hinge that couples the first and the second panels and enables a relative rotation about a rotation axis through the hinge. The relative rotation defines a relative angle between the first and the second panels. The fixing member is configured to couple to each of the first and the second attachment members when the relative angle between the first and the second panels is equivalent to a first angle, fixing the relative angle at the first angle and forming the structure.