Use this detailed list of body parts to trigger random thoughts and associations. Take a closer look at the bodily functions or simply use the body parts as an analogy to illustrate something else. Great ideas happen quite by chance when you least expect it. There is at first no obvious link at all between the problem area and the random object you see in front of you. Take a closer look, think about the object you see in front of you, can it relate to your problem area at all?
"A drop of ink may make a million think." -Lord Byron