A chain-shaped splicing toy is attached to a ball so that a plurality of balls can be spliced with each other. The chain-shaped splicing toy includes a first chain assembly. The first chain assembly has two first coupling portions, a first ring, two first buckling portions, and a plurality of first chain connecting portions. Wherein, when the first chain assembly is attached to the ball, the first coupling portion at one end is coupled to the first ring at the other end. The first buckling portions are buckled to the first coupling portion that is not located at one end of another first chain assembly attached to the other ball so that the balls can be spliced with each other in different shapes and models.

Embodiments generally relate to an interlocking brick design suitable for manufacturing with a 3D printer or other type of additive manufacturing. In one embodiment, a top cone having a slightly increasing diameter is formed on a top surface of an interlocking brick or other part. Another embodiment uses a bottom cylinder with notches formed on a bottom surface. The notches define flexible tabs which can have a thinner wall thickness than the cylinder. A design may use either or both of the top cone and bottom cylinder designs.

Connection systems for toy construction pieces, toy construction pieces, and toy construction kits. A connection system includes a male connection element and a female connection element. The male connection element includes a peg unit with a connector peg. The female connection element includes at least a portion of a connector core that defines a receiver cavity configured to receive at least a portion of the connector peg and at least a portion of a core shell. A toy construction kit for assembling a constructed assembly includes a plurality of toy construction pieces that collectively embody the connection system. A first construction piece includes the male connection element and a second construction piece includes the female connection element. The connection system is configured to selectively and repeatedly couple the first construction piece and the second construction piece to one another.

A toy construction element includes a first face recessed from a second face by a recess height, a first peg extending from the second face, and an engaging member disposed on the first face. The first peg has a first peg height relative to the second face. The engaging member may include a column portion and a peg portion, wherein the column portion extends from a first end portion at the first face to a second end portion at which the peg portion is disposed. The column portion may have a column height substantially equal to the recess height, and the peg portion may have a peg portion height substantially equal to the first peg height. A toy construction element may be part of a toy construction assembly, in which an engaging member of the toy construction element connects to a hole defined by a flexible member.

The disclosed technology relates to a construction playset made of expanded plastic foam extrusions. These extrusions are assembled with or without fasteners into a wide variety of configurations and optionally the extrusions are cut safely to a desired size and in desired shapes.

Provided are a clip system and method for joining plates using the system of clips, with each clip including a base, a first protrusion, a second protrusion, a first pair of fingers, and a second pair of fingers, with the first protrusion and the second protrusion extending in opposite directions away from the base.

A building block system includes a block body having four side faces offset 90 degrees from an adjacent side face and having a side edge intermediate adjacent side faces. The block body includes a top face perpendicular to the side faces and a bottom face opposite and parallel to the top face that is perpendicular to the four side faces, the top and bottom faces having a plurality of upper and lower edges, respectively, intermediate the four side faces, respectively. The system includes a plurality of receiver members, a single receiver member being positioned on a respective the side edge and on a respective the upper edge and on a respective the bottom edge. The system includes a plurality of connector members positioned intermediate the plurality of receiver members, respectively. Each receiver member has a configuration operable to receive a respective connector member in a locking engagement.

A chain-shaped splicing toy is attached to a ball so that a plurality of balls can be spliced with each other. The chain-shaped splicing toy includes a first chain assembly. The first chain assembly has two first coupling portions, a first ring, two first buckling portions, and a plurality of first chain connecting portions. Wherein, when the first chain assembly is attached to the ball, the first coupling portion at one end is coupled to the first ring at the other end. The first buckling portions are buckled to the first coupling portion that is not located at one end of another first chain assembly attached to the other ball so that the balls can be spliced with each other in different shapes and models.

A method for building large-scale play structures having an ideal modularity is provided. The method includes providing panels having a thickness, a planar-quadrangle shape including a length, a width and four chamfered edges with a set of holes located along each edge, the holes located at a fixed interval relative to one another, the fixed interval providing a unit of length, a fixed-location fastening element located in each of the holes, respectively; providing a plurality of movable fastening elements each including a hand-grip to allow the respective movable fastening element to be moved between an unsecured position and a secured position without the use of tools when received by any one of the plurality of fixed-location fastening elements; and employing the fasteners to secure a plurality of the panels to one another to provide a structure that has an overall height, an overall length and an overall width, the structure including at least a pair of panels oriented one above the other and at least a pair of panels located at the same elevation and secured at right angles to one another.

Building sets including one or more blocks or planks and one or more connector clips configured to engage a thickness of the planks. Various types of planks, as well as various types of connecting clips may be provided, so as to provide open-ended building characteristics to users. Some connector clips may include a mating protrusion allowing the connector clip to be coupled to a hole or receptacle of another connector clip, or hub for connector clips, or into a hole of a plank. Such clips may be pivotable relative to the structure coupled to as a result of the mating protrusion connection. The building sets may provide proportional dimension characteristics between the planks and various connector clips, hubs, etc. One or more button connector clips may be provided with one or more panels, allowing panels to be integrated into the structural framework created with the connector clips and planks.