Pen/chalk holder

I used one of those big pots of yogurt to make a pen holder (actually for my chalk because I have a wall where I can write with chalk in the kitchen and I already had made a pen holder see previous post):

In the middle of the process I thought it would be better to let the yogurt cup for the washing cloth and use a coffee capsule to keep the chalk:

You can hang it on a door lock or something! :D