Knock Box for Keurig My K-Cup

This is a small knock box to be used with the reusable Keurig My K-Cup. One day, I accidently knocked the k-cup into the trash while I was hitting the back of it to get the coffee grounds out. So I decided to make this. 

The box will print without supports standing up. There are circle cutouts on the bottom that will house 4 12x4mm rubber feet for extra grip. 

There is enough room in the box for the coffee grounds from a single My K-Cup.