An icosahedron is a three dimensional object with twenty triangular faces. The triangles meet together in groups of five to form a solid. It is one of the five Platonic Solids.
Magna Tiles are a magnetic children's building toy. Since the set contains over 20 equilateral triangles, the first attempt to create an icosahedron was done using the Magna Tiles.
Simple Paper Icosahedron
Twenty-Point Star Icosahedron
Small Triambic Icosahedron
origami small triambic icosahedron has points in groups of five for a total of 20 smaller points.