A Decahedron is a solid polyhedron with ten plane surfaces. As per the wiki, there are 32300 topologically distinct decahedra!

The decahedron is yet another design from John Montroll's 'A Plethora of Polyhedra in Origami'.  The design is for a decahedron made up of 10 equilateral triangles and is of intermediate difficulty.

The paper that I have used is hand made paper with streaks of gold in it. I found the paper great for folding the model. And I like the end result as well.

Model Details:

Model: Decahedron 

Creator: John Montroll

Book: A Plethora of Polyhedra in Origami
 
Author: John Montroll
 
Difficulty Level: Low Intermediate

Paper Ratio: Square

Paper Size: 7 inch squares

Did you know that the Platonic Solids were named after the Greek philosopher Plato? He believed that these were the fundamental components of nature and associated fire to the tetrahedron, earth to the cube, air to the octahedron, water to the icosahedron and the element cosmos to the dodecahedron.

As the name suggests, the Octahedron has got 8 sides, each of them equilateral triangles. I had thought that folding it would be more difficult than the Cube, but surprisingly, I found it easier to fold this! It is completely folded as a 2-dimensional model, till the last step where it is inflated to form the 3-dimensional Octahedron. The dual of the Octahedron is the Cube.

Model Details:

Model: Octahedron 

Creator: John Montroll

Book: A Plethora of Polyhedra in Origami
 
Author: John Montroll
 
Difficulty Level: Low Intermediate

Paper Ratio: Square

Paper Size: 5 inch squares