Map Object Tutorial - what would be worthy?

[Gamerprinter]

Question? One of the last tutorials for my 25 Quick & Dirty Map Tutorials Guide book needs a tutorial for creating a simple Map Object. What should I make a tutorial of that you'd consider a simple map object. I'm thinking something like a table, chair or chest would be too easy and not worthy of a tutorial just for it. On the other hand, many objects like the 3D trebuche pictured below is just too complicated for a short tutorial. So what do you suggest that I create for a tutorial on creating simple map objects?