So I absolutely love the idea of this. Super easy way to add some extra organization to your desk, and who wouldn't want a cup holder? No tools needed too, which is awesome! My problem is I like drinks that seem too heavy for it. I have included pics, one of a 16.9oz bottle of water, and the other a basic mug of water, and both caused the holder to lean which I didn't like. I felt it was just a waiting game for a disaster. With that being said, my desk is thin, like 3/4inch so I'm wondering if a thicker desk would keep it more secure.