Origami Pinwheel Cube (Folding Instructions) ~Part One~ Origami Bascetta Star by Paolo Bascetta (Folding Instructions) Origami Bouncy Unit Icosahedron by Tom Hull (Folding Instructions) Origami Five Intersecting Tetrahedra (complete assembly) Anillo del Río 3 --Origami Ring Tutorial. Origami firework. Transforming star. Moving Cubes (no tape) Fast Sketch - Modern Architecture. Killer Presentation Skills. Concurrent Forces Part 2 Finding Two Unknowns. Concurrent Forces Part 1 Finding Resultant. Arjun Rathi KRVIA.