This is an original design. If you use loose coffee grounds in your Keurig K-cup this cork screw can help remove the loose grounds quickly. I've been using this for years so its been thoroughly tested. The cork screw part is designed to be slightly smaller than the k-cup so it doesn't scrape on the screen. A couple gentle twists and the grounds just fall out. It was also designed to be used with my loose grounds pod holder and will store inside the holder. https://www.printables.com/model/134904-keurig-loose-grounds-pod-holder
I highly recommend printing this in petg only. Because the corkscrew portion has thin blades, regular pla will eventually break off. After a few years with petg I've had no problems at all.
The author marked this model as their own original creation.