A coupling for connecting a first coupling part to one toy component and a second coupling part connected to another toy component. The two coupling parts are connected to one another along a connecting axis to be rotated relative to one another thereabout. One of the coupling parts is a receiving coupling part having a locking guide receiving portion, which has a locking receiver extending in the peripheral direction about the connecting axis through more than 180°. The other coupling part is an insert coupling part having at least two insert guide portions axially spaced apart from one another along the connecting axis and guided radially in the receiving coupling part. A first insert guide portion is received to lock in the locking guide receiving portion of the receiving coupling part. A second insert guide portion is guided in a second guide receiving portion of the receiving coupling part.

A connector element for a construction system, the construction system having first and second construction elements. The first type of construction elements comprising at least one construction element having connector knobs formed on a surface thereof and arranged in a regular two-dimensional lattice. The second type of construction elements comprising at least one construction element configured to cooperate with a connector peg to form a snap connection. The connector element comprising an elongate body having first and second ends and a longitudinal axis (A.sub.1). The first end having a first cylindrical connector portion, having an inner surface configured to form a friction fit, and an outer surface configured to form a friction fit between four neighbouring connector knobs formed on a first type of construction element. A second cylindrical connector portion configured to form a snap connection with the cylindrical connector opening of the second type of construction elements.

An interlocking disc includes a hub with an inner circular area with an inner thickness and a circular step. A plurality of petals circumferentially spaced apart extend radially outward from the outer area of the hub. Each of the plurality of petals are disposed within a common plane and include a catch on each of side of each petal. The catch is engageable to a circular stop of another interlocking disc to inhibit disassembly.

The invention is a cost effective, structural building set, suitable as a toy, using post connectors (10) comprised of a post (12) with attached disks (14), or similar devices that insert into cutouts (31) in geometric shaped component parts (30, 80). More than one component part can be connected to the same post connector, and such component parts can rotate relative to the post axis. The connector design allows construction of stable structures of many sizes, shapes, and types, and readily facilitates hinging between different sections of such assembled structures. Many variations of the invention are possible, including connection with other types of construction elements (530, 570, 580, 584, 602, 640), structural element figurines (900), spinors, (512), various shape post connectors (612, 618, 620, 611) and faceplates (632), blocks (550), faceplates (576), lenses (590), catapult/slingshot (680), periscope mirrors (660), tubes (672), wheels (925), spherical elements (915), figurines (900), animal parts (944, 947, 950), and plane parts (954, 955) and more.

Building systems for creating three-dimensional structures include a plurality of polyhedral units, each unit being hingedly coupled to at least one adjacent unit, wherein the plurality of polyhedral units is arranged to be interchangeably manipulated between various forms of three-dimensional structures. The building system includes at least two types of plate-like building elements, including a single-piece element and a double-piece element that is formed of two single-piece elements arranged adjacent each other and being hingedly attached to each other at one of the edges of each of the two adjacently arranged single-piece elements.

An interlocking toy set comprising a plurality of interlocking pieces is disclosed herein. The interlocking pieces include a planar body having a top side, a bottom side opposite the top side, and a plurality of lateral edges that extend between and interconnect the top and bottom sides. The interlocking pieces also include a plurality of interlocking flanges that extend away from each lateral edge and configured to interlock with corresponding interlocking flanges formed on a lateral edge of an adjacent interlocking piece.

A modular block toy and kit that includes a male cubic unit piece having a plurality of faces with a male node extending from each respective face of the plurality of faces, and a female piece having a plurality of faces and corners formed by three intersecting faces, the female piece having a female component formed on a respective face of each of the plurality of faces that is sized and shaped to receive a respective male node enabling connection using any side of the female piece and any side of the male piece, and in which all sides of the female pieces and the male cubic unit pieces with a snapping and interlock design are identical, enabling the pieces to be snapped together using any side of the female or male piece to achieve build out indefinitely in any direction.

An air driven toy includes at least one connectible section that is removably couplable to an air flow generator to receive the object and defines at least one path for fluid flow through the at least one connectible section, wherein the air flow generator is configured to cause the object to be propelled through the at least one connectible section.

A building blocks that can be easily assembled or disassembled, comprising a building block main body. Each side of the building block main body is configured with a connecting structure. A plurality of building block main bodies is joined together through the connecting structures. The connecting structure comprises a connecting seat and a connecting rod. The connecting seat has an open connecting slot. The inner walls on the two sides of the open connecting slot are both formed with positioning bumps. The two sides of the connecting rod are respectively configured with a first and a second positioning slot. The two sides of the connecting rod are further configured with a first and a second guide slot that are respectively communicated to the first and the second positioning slot.