Emotimaker for Mac

From Ellipsis Productions:

Emotimaker is a simple program for making smileypacks for in use in various instant messenging and chat programs. Emotimaker is simple to use, offering an easy way of choosing the name, image, and ASCII representations for each smiley. Once you're done creating a smileypack, you can distribute it in Emotimaker's native format, install it into iChat, or save it in a format native to your desired IM or chat program. Currently, Emotimaker supports Adium, Proteus, Fire, and Colloquy emoticon plugin formats.