Sveinbjorn Thordarson
AppHack
FreeChange property lists and icons of any app.
MacVox Machina
Freespeech synthesizer which can save speech as MP3 or AIFF
MacPlatypus
FreeCreate Mac OS X apps from scripts.
MacSloth
FreeLists open files on your system and the applications using them.
MacTapir
Paidcreate global menu items that display command output
Mac