Construction kit

A toy construction kit comprising:

• a body made of nonmagnetic material and extending substantially in one plane, the body having
• a first face parallel to the plane,
• a second face opposite to the first face and parallel to the plane,
• a first edge between the first face and the second face,
• a second edge between the first face and the second face,
• a third edge between the first face and the second face,
• a first planar edge face between the first edge and the second edge and opposite to the third edge, when viewed from the direction perpendicular to the plane,
• a second planar edge face between the second edge and the third edge and opposite to the first edge, when viewed from the direction perpendicular to the plane,
• a third planar edge face between the third edge and the first edge and opposite to the second edge, when viewed from the direction perpendicular to the plane,
• wherein the first planar edge face is at a 60 degree angle to the second planar edge face and the third planar edge face, and the second planar edge face is at a 60 degree angle to the third planar edge face, when viewed from the direction perpendicular to the plane;
• a first magnet fixedly disposed in the body, the first magnet having an outer surface that is symmetrical about a first magnetic axis and at least one planar face that is perpendicular to the first magnetic axis, the first magnetic axis aligned with a center of the body, the at least one planar face of the first magnet disposed adjacent to and parallel to the first planar edge face of the body, and the first magnetic axis generally perpendicular to the first planar edge face of the body;
• a second magnet fixedly disposed in the body, the second magnet having an outer surface that is symmetrical about a second magnetic axis and at least one planar face that is perpendicular to the second magnetic axis, the second magnetic axis aligned with the center of the body, the at least one planar face of the second magnet disposed adjacent to and parallel to the second planar edge face of the body, and the second magnetic axis generally perpendicular to the second planar edge face of the body;
• a third magnet fixedly disposed in the body, the third magnet having an outer surface that is symmetrical about a third magnetic axis and at least one planar face that is perpendicular to the third magnetic axis, the third magnetic axis aligned with the center of the body, the at least one planar face of the third magnet disposed adjacent to and parallel to the third planar edge face of the body, and the third magnetic axis generally perpendicular to the third planar edge face of the body;
• and
• a ferromagnetic ball releasably and magnetically held against the first planar edge face by the first magnet,
• the first magnetic axis, the second magnetic axis, and the third magnetic axis intersecting at the center of the body and radially spaced equally around the center at 120 degree increments, when viewed from the direction perpendicular to the plane, and
• the first magnetic axis, the second magnetic axis, and the third magnetic axis being coplanar and parallel to the plane of the body.