Frabjous is a puzzle, based on an original geometric sculpture by mathematician and artist George Hart. The swirling geometric form is composed of 30 identical pieces that snap together at their vertices. Mathematically, the planes of the shape are the faces planes of a "Great Rhombic Tricontahedron", a self intersection polyhedron with thirty rhombic faces. Each puzzle, is a carefully designed subset of plane, made so that it does not intersect with the other copies of itself. Difficulty: Challenging Weaving the parts through each other so that each remains planar is trickier than it looks. Instructions are included. “And hast thou slain the Jabberwock? Come to my arms, my beamish boy! O frabjous day! Callooh! Callay!” He chortled in his joy. - Lewis Carroll , Jabberwocky