FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
Satellite Eyes - Changes your Mac wallpaper to a satellite map of your local
My Script Font - Make a font with your own handwriting
Letter from You - Handwritten letter, mailed for you in the future.
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.
Type to Design - An Instagram-generated font