Learn to fold an interesting geometric modular, made from silver rectangles. The Matryoshka Rhombic Dodecahedron, takes the form of the 'First Stellation of the Rhombic Dodecahedron', as seen in M. C. Escher's - Waterfall, but there's a secret, bonus model, hidden inside.
Four sheets of letter/A4 copy paper (kami is too thin). Preferably one sheet of white, and three other colors. You will also need a craft knife, metal rule and cutting mat, to prepare the paper. An 'Envelopener' style paper cutter, will also be useful, if you have one.