Fitz is a window decoration for KDE that allows you to work (or play) faster. Unlike other decorations, it does not have a title bar above the window. Instead, it puts the buttons in the menu bar. As a result, it lets you get to a menu item by ramming your mouse into the top of the screen. If you click on the window frame, the mouse will jump down into the middle of the menu bar and Fitz will generate a click. This effectively puts the menu bar at the top of the screen like Mac OS does.
Multi-Cursor Window Manager creates a desktop environment that allows simultaneous input from multiple users. Users can work concurrently on different applications or desktop items. Each user gets a uniquely-colored cursor. It works by time-slicing the single system cursor. The state of each user's multi-cursor is maintained and restored just before an XEvent is sent to the system. Up to seven simultaneous users are supported.
Twindy is a window manager inspired by Tracktion, the multitrack audio editor/sequencer for Windows and OS X. It tries to apply Tracktion's workflow, in which everything is on the screen at once, to a window manager. There are two panels, a main panel in which new windows/programs open by default and may be selected using tabs, and a lower panel, which can only hold one window/program at a time. It uses a modified version of the JUCE library (included), resulting in relatively few dependencies and a fairly unique appearance.