FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
Pigment by ShapeFactory - A unique way to explore color using lighting and pigment
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...
ibis Paint X - Drawn with + ibisPaint
BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...
Kdan Mobile Animation Desk - Achieve your dream of creating your own animation.