Pencil Holder

Creating a pencil holder
Creating a Cared Prototype

First create a card prototype of the design you want.
Create a Mold

Then based of the card prototype create a polypropylene mold that you cand pour plaster into.
Choose Final Design

Make your final design idea out of polypropylene.
Pour and Dry

Pour your plaster into the mold and let it dry.
Sand

Sand down the rough edges and if there are any impurities sand those away if possible.
Drill

Drill your hole for the pencils and sharpener. Make sure they are evenly spaced.
Final Product

When you are done this is your final product, Now just add your pencils and enjoy.