Gifsicle is a powerful command-line program for manipulating GIF image files. It has good support for transparency and colormap manipulation, simple image transformations (cropping, flipping), and creating, deconstructing, and editing GIF animations. It can also optimize GIF animations for space. Also included is a GIF animation viewer and a program that checks whether two GIFs look the same.
The mminstance package creates instances of PostScript Type1 multiple master fonts. (An instance is a version of the font as it looks at one point in its design space.) Mminstance lets you use multiple master fonts with programs that don't handle them directly, such as afm2tfm, ps2pdf, ps2pk, and X Type1 font servers. Mminstance contains two programs. Mmafm creates AFM font metrics from multiple master AMFM and AFM files, and Mmpfb creates a single-master font outline file (PFA or PFB) from the multiple master font itself.
The t1utils package contains six programs that manipulate PostScript Type 1 fonts. There are programs that change PFB (binary) fonts into PFA (ASCII) format (and back), that translate fonts into a disassembled human-readable format (and back), and that translate Macintosh Type 1 fonts into PFB or PFA (and back).
Real Mah Jongg is a social game that originated in China thousands of years ago. Four players, named after the four winds, take tiles from a wall in turn. The best tiles are made of ivory and wood; they click pleasantly when you knock them together. Computer Solitaire Mah Jongg (xmahjongg being one of the sillier examples) is nothing like that but it's fun, or it must be, since there are like 300 shareware versions available for Windows. This one is for X11 and it's free.