Abstract: A modular dice system includes a block member including a plurality of sides each having a same shape and size. Each of the sides includes a first mating member. A plurality of tiles is provided and each has an interior surface, an exterior surface and a perimeter edge. Each of the interior surfaces includes a second mating member. Each of the second mating members is releasably couplable to one of the first mating members. The exterior surfaces each have indicia thereon and the indicia differ from tile to tile. The perimeter edges of the tiles are exposed when the tiles are attached to the block member such that the perimeter edges abut an upper side of a rolling surface when the block member is rolled on the rolling surface. The perimeter edges retain a space between the block member and the rolling surface.

Abstract: A toy building brick system includes a brick having an upper wall and an outer wall that is attached to and extends downwardly from the upper wall. The outer wall has a bottom edge that is a free edge. The outer wall bounds a receiving space configured to releasably engage a male connector such that the outer wall and the receiving space defines a female connector. The outer wall has a first notch and a second notch therein each extending upwardly from the free edge and to the upper wall. The first and second notches form grips to facilitate removal of the brick from a male connector.

Abstract: A toy building brick system includes a base brick having a cubic shape such that the base brick comprises six outer walls. The base brick has an open interior and each of the outer walls comprises a female receiver such that six female receivers are formed in the base brick. In this manner, the base brick defines an all-female brick. A plurality of inserts is provided and each of the inserts is removably engaged with one of the female receivers such that an outer surface of each of the inserts faces outwardly of the open interior.

Abstract: A toy building brick system includes a base brick having a cubic shape such that the base brick comprises six outer walls. The base brick has an open interior and each of the outer walls comprises a female receiver such that six female receivers are formed in the base brick. In this manner, the base brick defines an all-female brick. A plurality of inserts is provided and each of the inserts is removably engaged with one of the female receivers such that an outer surface of each of the inserts faces outwardly of the open interior.

Abstract: A grippable building brick assembly includes a panel has a top side, a bottom side and a perimeter edge. A perimeter wall is attached to and extends downwardly from the perimeter edge. The perimeter wall has a bottom edge. A female interconnection member is integral to the bottom side of the panel and releasably engages a male interconnection member from a building brick system. The perimeter wall has a pair of openings extending therethrough and extending upwardly from the bottom edge to the panel. The openings each are graspable by a person to facilitate disengagement of the female interconnection member with the male interconnection member.

Abstract: A vertical and lateral stackable brick assembly includes a mounting brick that has a plurality of sides including a top side, a bottom side, a first side, a second side, a third side and a fourth side. A plurality of male interconnection members is integral to the mounting brick and extends away therefrom. A plurality of female interconnection members is integral to the mounting brick and extends into a surface of the mounting brick. The female interconnection members are located on at least one of the sides. The male and female interconnection members releasably engage bricks from a building brick system and may also engage male and female interconnection members of other mounting bricks. The male interconnection members is positioned on the top side and at least one of the first, second, third or fourth sides includes the male interconnection members.