Random shaking SeparateFaces

can somebody advice me how to achieve random shaking of the mesh faces in svens SeparateFaces (EX9.Geometry Mesh)
thx in adv, dimi

SeparateFaces (EX9.Geometry Mesh).zip (4.3 kB)

something like that?

randomshacking.zip (4.7 kB)

Hi screamer. Thanks a lot. vvvvorks great:
amount control with mapping range
speed control with filtering time in damper