Units and fasteners for a modular construction set are provided. A unit includes a panel having a front surface and a back surface opposite the front surface. The panel is made of a flexible material that biases the panel to a flat state. The panel includes an aperture between the front surface and the back surface. The unit further includes a fastener affixed to the panel at the aperture, the fastener including a first piece and a second piece joinable to the first piece through the aperture to affix the fastener to the panel. The fastener further includes a magnet disposed between the first piece and the second piece to engage the fastener with an oppositely facing fastener of the modular construction set.

The present disclosure relates to a toy block, and the toy block includes a main body, a plate-shaped magnetic body located in an accommodation space in the main body and including a first surface and a second surface having different polarities, and a guide part disposed in the accommodation space and configured to guide rotation of the plate-shaped magnetic body.

Apparatus and method of playing a building game against an opponent. The apparatus may include a podium for building a structure with stackable materials such as building blocks. The apparatus may also include an actuator that allows a first player to blow up a second players structure if the first player builds his or hers first. The Build or Boom game may simply utilize air chambers and a tube but is also capable of utilizing electrical and mechanical means to perform the same functions.

Apparatus and method of playing a building game against an opponent. The apparatus may include a podium for building a structure with stackable materials such as building blocks. The apparatus may also include an actuator that allows a first player to blow up a second players structure if the first player builds his or hers first. The Build or Boom game may simply utilize air chambers and a tube but is also capable of utilizing electrical and mechanical means to perform the same functions.

A building element of a specified shape having at least one surface including at least two diagonally opposed projected portions and at least two diagonally opposed recessed portions in relation to the diagonally opposed projected portions. The projected portions are adapted to engage and interlock by snap fit and/or by interlock friction with a substantially identical side of a corresponding building element.

In a system having multiple coupling elements configured for single-handed coupling and single-handed de-coupling, each coupling element includes a body portion defining an opening and having a base configured to be free-standing. The body portion has an outer limb defining a hook member and at least one slot formed therein, the respective slot of a second initially free-standing coupling element being accessible to the respective hook member of a first suspended coupling element or vice versa. The coupling elements being configured so that mutual points of contact between the first and second coupling elements are maintained during both lifting and lowering the second coupling element thereby facilitating a one-handed intercoupling or decoupling operation with respect to a free standing coupling element disposed upright on a horizontal support surface.

The present invention discloses a triangular building block being assembled into all kinds of various shapes. The building blocks in a same series are latched or stacked together by grooves and bumps thereof, forming many kinds of block assemblies. The building block can be also crossed over on trapezoidal blocks in a different series to form a block assembly in a shape of a house on which a triangular rooftop is installed.

A toy building element comprising primary coupling means that extend from a top wall and comprise a cavity that contains secondary coupling means that are configured for being able to cooperate frictionally with the primary coupling means on a neighbouring element in a number of friction areas. According to the invention there are also primary locking means that are situated at the end of notches in the primary coupling means, wherein the locking means are configured for snap-lockingly engaging with secondary locking means in the cavity of a neighbouring element in same locking areas that are situated outside said friction areas, in which the secondary locking means are elastically resilient in directions in parallel with the top wall of the building element and are substantially elastically relieved in an interconnected position. The coexistence of friction- and snap-locking means entails is that the element yields a far higher coupling force than the known elements, that cold flow is almost eliminated, and that the element is compatible with the known elements.

Elongated cuboid-like toy blocks adapted to be interconnected, the blocks having only female or interleaved male and female coupling components on each elongated face of the block, the width of the cuboid being the same as the height of the cuboid, the length of the cuboid being a multiple of the height of the cuboid, each face of the block having at least one coupling component, each elongated face of the block having at least two coupling components, the coupling components on a single elongated face being equally spaced, all the coupling components on a single elongated face being aligned on the same line, blocks being invariant to rotation by the right angle with respect to the axis of elongation, with male and female coupling components being compatible.