Fuzzy Tray Clock is a very simple, GTK-based clone of the KDE fuzzy clock widget done as a favour for someone.
It requires PyGTK but, in the interest of portability between non-KDE desktops, uses a tray icon and does not depend on the Python GNOME or Xfce bindings. (It hasn't been tested on Windows or MacOSX, but will probably work.)
There is a known bug that, on some systems, it won't find the desired icon. You can use the --icon command-line option to specify an alternate one by path in such cases.
If you'd like additional levels of fuzziness, just ask. Be specific and please excuse delays. I'm often somewhat busy.