Tiered pencil holder

I wanted to try making something big in OpenSCAD, and my teacher has a curved pencil holder, so I decided to make my own. More updates to follow.

UPDATE (1/8/2016): I was inspired by the Twist pencil holder by LightningPhil, but it really wasn't turning out the way I thought it would. I might get back to it later, but for now, no more updates.