Do you have a few MARIUS stools lying around? Attach anything to them using these cool looking multifunctional hooks. The artist behind the models (Lauren Lacy Slowik) is showing a nice application of using the hooks to always have your favourite book nearby:
Print the Clippy Hooks, preferrably in ABS, in a colour of your liking. Default print settings with an infill of 20% should be just fine. If you want a picture perfect end product, treat it with some acetone to give it a smoother finish. Once done, simply clip the Clippy Hooks onto the net and slide them onto the legs of the stool. And voila, you’ve got yourself some extra storage space!