Jellyclick - an inflatable computer mouse, was created by a group of Korean designers. If you do not have space in your notebook bag for a regular mouse, this is the one to consider.
Portablity is very important for a laptop mouse. Emphasis on portablity results in decrease of the usability and vice versa.
‘Jelly click’ is a flat type portable mouse that can be used by being inflated satisfying both portability and usability of a laptop mouse.
When deflated the user can fold it up for a convenient portability and when inflated and in use a feeling as if you were touching a soft jelly or even a balloon can be felt. [designodoubt]