An arrow golf system has a bow having a bowstring, an arrow having a shaft with a ball on one end with a fletching and a string nock on an opposite end, a starting location, a finishing location, and a capturing apparatus at the finishing location. A player shoots the arrow from the starting location with the bow, to a second location closer to the finishing location, retrieves the arrow at the second location, and shoots the arrow toward the capturing apparatus from the second location.

The disclosure relates to a method for controlling a graphic interface for displaying images of a digital representation of a launcher in a virtual environment Ev, the launcher comprising a launching arm equipped with a magnet. An array of magnetometers M.sub.i measures the magnetic field generated by the magnet, a state vector of the launching arm in a virtual reference frame Rv is determined, and a phase of arming then firing a projectile in the virtual reference frame Rv are identified. An image is then constructed and displayed on the graphic interface.

Apparatus and methods are disclosed for sealing openings on containers and other structures, permitting selective removal of portions of the seal structure, and for similar selective removal of portions of adhesive elements such as bandages.

There is provided herein a toy projectile comprising toy housing body and a bistable spring located on a front of the toy housing body and which has an opened position and a closed position and which is capable of transitioning therebetween. There is also provided a game which employs the toy projectile and processes of using the projectile.

A ring and hook system and apparatus includes a toss member tethered by a tether member to a collapsible armature, supported by an inverted u-shaped cantilever receiver angled at approximately 90°, which is attached to a vertical armature. A hanger on the top may be used to secure the armatures on a door and a hook which protrudes horizontally from the bottom of the vertical armature to receive the tethered toss member.

A method for calculating a position of a dart pin attached to a dart board divided into a plurality of segments in an apparatus for calculating a position of a dart pin is provided. The method includes obtaining a plurality of optical data from a plurality of optical devices corresponding to at least one of a plurality of holes formed in each segment and installed on the rear surface of the dart board; and calculating a position of a dart pin attached to the dart board using the plurality of optical data.

A hobby projectile may include, but is not limited to: a ball-type projectile having a substantially spherical shape and constructed at least partially of a foam material; and a magnetic or magnetizable component. At least a portion of the ball-type projectile may be at least partially coated with a magnetic or magnetizable component or may include magnetic or magnetizable particles and/or fibers embedded therein.

A target game device for use in conjunction with a toilet includes a target portion with sensors to detect a urine stream and logic to allocate points based on accuracy. A user interface provides engaging and entertaining feedback to motivate users to improve their aim.

A strategic pattern building game apparatus having a target grid and a rotatable loading tray movable between an elevated position above and aligned with the target grid during play and a folded position adjoining the target grid for transport and/or storage. The game apparatus includes a plurality of playing discs which are placed in channels in the target grid and in the loading tray, and projectile launchers used by players to knock out playing discs until one player achieves four of his/her discs in a horizontal, vertical or diagonal line. The discs are deformable and received at the target grid for being ejected during game play when impacted by the projectile.

An inexpensive toy projectile launch apparatus incorporating pivotally connected housings which may be quickly and easily assembled. The hand held toy projectile launchers include a flexible plastic launch spring having engaging portions mounted within the housings to enable an operator to move the housings in relation to one another using one hand, with an end portion of the launch spring for engaging and launching a projectile. Each component includes a number of structures such that assembly is simple, but the structure is both robust and inexpensive. The apparatus may launch soft foam darts or soft foam spheres and each launch apparatus includes an elongated strip-like plastic launch spring that bends when primed so as to provide energy for launch.