Felix

Since it was created in the silent film era, Felix the Cat remains one of the most recognizable cartoon characters in American movie history.
If you want to keep this famous character in memory, then make sure to check out Felix, a Yahoo widget that displays an animation on the cat directly on your desktop.
So, Felix appears on the screen and walks around looking troubled; sometimes it smiles and 'greets the audience'.
By opening the right-click menu, you can access the 'Widget Preferences' area to adjust the turn and stand frequency, along with the refresh rate (it causes Felix to move less or more quickly).
Furthermore, you can go to the 'Tricks' tab and change the animation folder name, as well as the number of files for the walk, stand and turn (left right and left) - the default is 13, 6 and 9, respectively.
In the 'Window' area you can configure common settings for widgets - set Felix to stay on top or below other applications, to ignore the mouse and to prevent dragging, as well as adjust the opacity level between 20% and 100%.
Felix barely affects the CPU and system memory. It is stable and has a good response time. The app did not freeze, crash or cause Windows to pop up error dialogs. Too bad it hasn't received recent updates. Otherwise, the lovable character can put a smile on your face.