This is based on a clock I had years ago, the second hand was a thin piece of blue plastic - so the face of the clock constantly changes.

I am using screenlets. To install this theme create the following directory under your home directory:

.screenletsClockthemes

Then unpack the downloaded file there.

Now right click on your screenlet clock, and select properties. It should now appear in the 'themes' tab as '80s'.