Modified Printrbot Simple Filament Guide with Marker Guide

I modified my already modified filament guide to include this marker guide for coloring your filament while it's being fed into your extruder.

I took this thing http://www.thingiverse.com/thing:11742/#files and attached it to the top of my filament guide, which I based off of this another design found here: http://www.thingiverse.com/thing:128240