Common items

[nachoman]

As I was using some scrap girders cut from an atlas plate girder bridge yesterday, I recalled that I bought them for a bridge I built for my childhood layout. I'm now using the girders for a turntable bridge. I also have an atlas water tower on my layout, and I seem to notice the same kit on many other layouts. So, just curious, how many of you have the plate girder bridge or the water tower on your layout? Are there other items you can think of that show up on many layouts either in kitbashed or original form? Some of the DPM kits come to mind.