WMTime is a Window Maker dock app that displays the time and date and gives you some nice additional features too. It provides a realtime morphing interface (analog <> digital mode), auto-scaled and anti-aliased hands, localization that displays the day and date in various languages, and three user-defined launch commands.
wmpower+ is Window Maker laptop power management dockable application. It displays the battery status, the number of fans or the fan speed, and CPU temperature, and allows you to switch the power management status of some laptops. It is based on wmpower by Michele Noberasco, which doesn't work with the new kernels starting from 2.6.36.
Genmenu can generate menus for Blackbox, Fluxbox, Openbox, Window Maker, and Enlightenment based on the program binaries found installed on a system. The list of programs to search for are contained within the script. Users can, to a limited degree, customize their menus via a set of interactive questions.
wmsystemtray is a system tray using the freedesktop.org system tray protocol that was implemented as a Window Maker dock app. It has the ability to display more than one dock window to make room for more tray icons, and the ability to scroll through the icons if more are present than will fit.
GNUSTEP Live CD contains a lot of software for GNUstep, a free implementation of the OPENSTEP framework (which is also directly used in Mac OS X as Cocoa). It includes excellent applications for RAD (GORM and ProjectCenter). The CD is available for i486, AMD64, Apple Mac PowerPC, and Sun UltraSPARC computers.