E-Mbuttons is a small epplet which acts as an application launcher. It's composed of several buttons. Each button executes one command (application or script). Several visual effects are applied after clicking a button. You can customize the epplet geometry, the number of buttons/columns/rows, and allowed effects. It consumes an insignificant amount of resources.
Clementine is a window manager for X, based on aewm, written in C++. This project aims to create a small, fast window manager with the minimum amount of extra added features in order to make it usable. Clementine will be as small as possible within these constraints of usability, but no smaller.