Water Cooler Cup Holder

Got a new water cooler and wanted my daughter to be able to use it by herself. She couldn't reach the cupboard where we keep her cups, so I designed this cupholder to hang off the cooler.

The holder is designed to fit our cooler and plastic kids cups from Ikea. I added some thin supports that can be clipped off with diagonal cutters. I've included the Openscad design file so it can be resized.