Took me a while to figure out the perfect design for the "floating" part. Some of the earlier designs resembled a face (with the eyes being screw covers and the mouth being the shelf itself). I'm super happy with how it ended up though! Let me know what you think!

https://makerworld.com/en/models/511824#profileId-42790

https://i.redd.it/b7of0tzeny8d1.gif