You can use Kali to draw Escher-like tilings, infinite knots, frieze patterns, and other cool stuff. It lets you draw patterns in any of the 17 planar (wallpaper) or 7 frieze symmetry groups. Drawings are done interactively with X, and PostScript output is supported.

The eclipse-cdt package contains Eclipse features and plugins that are useful for C and C++ development.

Xfe is based on the popular but discontinued X Win Commander. It is desktop independent and is written using the C++ Fox Toolkit. Its appearance is similar to the Windows file-manager Total Commander or Windows Explorer. It is very fast and simple.

This GTK+ theme provides an animated scalable group of icons to be used by GTK+ applications.

Jed is a small, fast and powerful text editor, yet starts faster than bash.

Magic Rescue scans a block device for file types it knows how to recover and calls an external program to extract them. It looks at "magic bytes" (file patterns) in file contents, so it can be used both as an undelete utility and for recovering a corrupted drive or partition. As long as the file data is there, it will find it.