If you are looking for space-saving display shelves, then this is perfect for you. This mod for Sims 4 allows you to add simple floating shelves that are perfect for tiny spaces. They may be small, but their capacity is not limited to one item. The smaller shelf has 1 medium and 3 small, and the larger one has 3 medium and 7 small.

This was created from the basket/shelf combo item from Laundry Day.

The mod is free to download, so you do not need to worry about any sort of payment to use it.