Marker holder (for colouring feedstock)

We bought lots of white ABS with our shapercube.. Lots. But who wantsto print everything in white? After a while that got abit.. samey. So, an experiment, jam a coloured marker in the feedstockinlet and see what happens. What happened was, coloured prints cameout. So the idea for the marker organ was born, a way to attachedseveral coloured markers to the feedstock, and pick which one, orcombination, is colouring the plastic.This is the first attempt, a simple clamp over the feedstock whichholds a single marker against it. --- Imported from Thingiverse: https://www.thingiverse.com/thing:5570 Original creator: theorbtwo