I'm in the kitchen cooking up some...avatars? If my avatar wasn't just pixels on a screen, I imagine her to feel just like dough or clay. Her arms would flatten if pinched and they would stretch out if pulled. I'm much more flexible and limber in SL. I can bend and twist in many different positions, which makes me think of clay. The youthful look of many avatars and colorfulness on the grid also makes me think of play-doh.
Whenever a deformer is used on my avatar, I have to relog because I think that I will be walking around all twisted and stretched out even after I use a stop all animations rose. This long arm can be convenient to reach things from far away though and my stretched out torso will finally make me taller in-world!