If I was shrunk to the size of a pencil, and put inside a blender, there is technically no way that I could ever get out of that nightmare. However, in case the blender is not turned on yet, I would try jumping and knocking off the lid of the blender.
Then, I would try to climb out so as to avoid being crushed inside. If the blender is actually turned on while I am still inside, I would pretty much die a very gruesome death that which I cannot even wish upon my worst enemies. Technically, if the blender was on, there is no way I could be alive.