Analogy for static objects (or members) I'm trying to think of an analogy to explain how static members, references and objects work. 

What I have in mind is saying that static is like the number of computers in the world. That parameter isn't related to any specific computer, but rather to Computer in general. 

However I feel like this might confuse students, partly due to the name static (i.e. something that doesn't move).

Can anyone suggest an analogy that shows what static means in everyday things? Preferably something that high-school students can relate to and understand.
I use school colors and principal's name. 

If someone comes in tomorrow and says your principal is no longer Mr. Smith, it's now Ms. Jones then that change is made for every object (student) in the school. You don't have to go to each individual student and tell them that their principal has changed. 

It worked really well this year because we did get a new principal.