I like having buffer storage containers in a lot of my factories, but it can be difficult to find proper space for them when I'm building vertical! So I concocted this build to give the appearance of a ceiling-mounted storage container.

Two important notes here:

1. The blueprint has a 1m foundation attached to the underside, go ahead and delete it after placing it. I found that having the foundation there made aiming the blueprint to place it much easier.
2. Speaking of, this blueprint can be SUPER finnicky to aim, sorry about that!