Okay, I know everyone's getting tired of hearing me go on about how Star Trek uses the same model of composter I have as a prop. I've already discussed this in some detail here, here and here. But I had another siting that was too spectacular to let pass.
Lately I've been using my Netflix subscription to watch Deep Space 9 from beginning to end. Yesterday I hit the episode where my composter appears for the first time. It's the penultimate episode of season five, entitled "In the Cards". Take a look at this.
There are ten of them! And they're not hidden in the background! And the characters are actually interacting with them! O'Brien says that what he is doing is recalibrating all the EPS regulators so that they will not interfer with the station's gravity. Looks more like cargo to me, but I suppose that I should trust the Chief to know what he is doing.
What I don't understand is why the set designers never think to plug the holes. They are quite visible here. Also, it wouldn't hurt to paint the bolts.