Abstract: A key-configured transmitter design has a housing for containing the electronics thereof and a key blank which may optionally be cut to conform to the key shape of the vehicle ignition key or any other key the user might otherwise use on a regular basis. In this manner, it is possible to substitute the transmitter of the present invention for a key that the user would otherwise retain in his pocket or purse, thereby obviating the relative inconvenience of prior art transmitters, which require the addition of a transmitter device to their pocket or purse. The key blank serves the dual purpose of a real key such as for operating the vehicle's ignition and also as an antenna for radiating the oscillator signal produced by the transmitter of the invention.

Abstract: An article with a polyfunctional front surface is adapted for use in the game of hit and catch with a projectile having an outer surface defined by a multitude of irregular filamentary formations for releasably engaging a mating surface. The article includes a handle and a head, the handle being adapted to be manually gripped, and the head being secured to the handle for movement therewith. The head defines a polyfunctional front surface having at least one first region and at least one second region. The first region is substantially rigid or non-flexible and adapted to cause a rapidly impinging projectile to rebound therefrom, and the second region is substantially flexible and defined by a multitude of irregular filamentary formations adapted to releasably engage the outer surface of an impinging projectile. Thus a projectile impinging on the head front surface will rebound when impinging on the first region and will become engaged when impinging on the second region.