A puzzle set with a plurality of puzzle pieces is provided. Each puzzle piece has at least four puzzle piece sections. The puzzle piece sections comprise a shape that is square, hexagonal, octagonal, circular or any geometric shape. Also, the plurality of the puzzle pieces comprises different geometric shapes such as I-shaped, T-shaped, L-shaped, O-shaped, S-shaped, J-shaped, and Z-shaped. The plurality of the puzzle pieces are arranged against, connected to each other, or stack on each other to shape the pattern of the puzzle pattern and complete the puzzle.

Puzzle pieces, puzzle piece compositions, puzzle piece fastening devices and systems, assembled puzzle mounts and systems and methods of fastening and assembling different layers together to form puzzle pieces. Mounting assemblies for the puzzles and support structures and methods for customizing and the decorating of puzzle pieces and assembled puzzles.