xeyes for Mac

xeyes is a small X11 desktop widget that displays a pair of cartoon eyes on the screen, with the gaze constantly following the movement of the mouse pointer. It achieves this effect through X's SHAPE extension and is a typical command-line program: once launched, the window appears without any complex configuration. It does not solve any practical work problem; rather, it serves to demonstrate X graphics capabilities, test whether the display environment is functioning properly, or add a bit of fun to the desktop. It suits Linux users running an X11 desktop, newcomers to the X graphics system who want an intuitive feel for its effects, and users who enjoy tinkering with small gadgets on their desktop.