Can-Ejecting Mug

This is a mug-coozie hybrid that can hold soda cans and eject when they are empty (by pulling a lever). The only parts that are not 3D printed are the two pen springs and two 12mm OD 0.8mm thick (30 mm long) springs.

The 30mm long springs can be found on Amazon for cheap: https://a.co/d/j6LWOVA