Does moss grow fat on a rolling stone?

Well i can't say for sure, but is sure looks like it grows fat at the base of my house, yep that is moss, cool huh!

Something i thought yesterday while shooting my first few Macro shots made me think that a good reference for size was to say that i can shoot things that are the size of a pencil eraser. Which got me to thinking how cool would that look and eventually led me to the somewhat flat end of these colored pencils.