A kit for playing a game on ice. The kit includes two or more game discs and a set of instructions for playing the game. The game discs are shaped to enable their passage over imperfections in the ice. Specifically, the game discs are tapered, such as with beveling but not limited to that. The taper reduces the chance that the disc will be stopped or diverted as it travels over the ice. The game requires the formation of two holes spaced from one another in the hole without extending through the ice. The game is played by sliding the discs toward the holes and scoring based on disc entry into the hole as well as closest proximity to the hole.

A collapsible stunt ramp apparatus is provided. The collapsible stunt ramp apparatus includes a base support structure and a number of base support rods. The base support structure includes a number of slots. The slots are designed to receive the base support rods. The collapsible stunt ramp apparatus also includes a number of vertical support beams. The number of vertical support beams includes a pair of intermediate support beams that are designed to connect to the base support rods. The collapsible stunt ramp apparatus also includes a ramp platform. The ramp platform is designed to connect to the vertcal support beams.

A collapsible stunt ramp apparatus is provided. The collapsible stunt ramp apparatus includes a base support structure and a number of base support rods. The base support structure includes a number of slots. The slots are designed to receive the base support rods. The collapsible stunt ramp apparatus also includes a number of vertical support beams. The number of vertical support beams includes a pair of intermediate support beams that are designed to connect to the base support rods. The collapsible stunt ramp apparatus also includes a ramp platform. The ramp platform is designed to connect to the vertcal support beams.

A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a μ.sub.s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a μ.sub.s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

An energy absorption corner assembly for gate-opening sections and gates of dasher board assemblies for a playing zone having a playing zone comprising: an elongate core section comprising a polymer material having a first durometer; a sheet of the polymer material having a second durometer, wherein the second durometer is greater than the first durometer, wherein the sheet of the polymer material covers an entire surface of the elongate core section(s) facing the playing zone.

An energy absorption corner assembly for gate-opening sections and gates of dasher board assemblies for a playing zone having a playing zone comprising: an elongate core section comprising a polymer material having a first durometer; a sheet of the polymer material having a second durometer, wherein the second durometer is greater than the first durometer, wherein the sheet of the polymer material covers an entire surface of the elongate core section(s) facing the playing zone.

A wave generating apparatus mobile application controller and method are provided in which a mobile controller actuates a plurality of wave generating chambers in sequence using a delay between the actuation of each chamber to produce a rideable wave in a pool. The mobile application controller allows the user to select the exact type of wave to be produced by the wave generator apparatus by selecting the size, shape, and pattern of the wave. The application also allows the user to use a camera to photograph or record herself or someone else, even while riding a wave.

A grass ski carpet, comprising a plurality of spiral grass assemblies arranged regularly, wherein each spiral grass assembly comprises: a plurality of row brushes arranged in a same direction, wherein each row brush comprises a base bar and multiple pieces of spiral grass, the multiple pieces of spiral grass are spaced apart and fixedly connected to a first surface of the base bar, the multiple pieces of spiral grass are arranged in a same direction, each of the multiple pieces of spiral grass has a grass tip, a grass stem, and a grass root, the grass stem is curved, the grass tip is bulbous, and rotation directions of all the multiple pieces of spiral grass are same; and a base plate fixedly connected to each of the multiple row brushes through a detachable structure, so that the multiple row brushes are arranged on a surface of the base plate.

A grass ski carpet, comprising a plurality of spiral grass assemblies arranged regularly, wherein each spiral grass assembly comprises: a plurality of row brushes arranged in a same direction, wherein each row brush comprises a base bar and multiple pieces of spiral grass, the multiple pieces of spiral grass are spaced apart and fixedly connected to a first surface of the base bar, the multiple pieces of spiral grass are arranged in a same direction, each of the multiple pieces of spiral grass has a grass tip, a grass stem, and a grass root, the grass stem is curved, the grass tip is bulbous, and rotation directions of all the multiple pieces of spiral grass are same; and a base plate fixedly connected to each of the multiple row brushes through a detachable structure, so that the multiple row brushes are arranged on a surface of the base plate.