iConvert Icons - iConvert converts and creates Windows, Mac and Linux icons in one step.
Icono Maker - Icono Maker is an icon maker for Windows.
Faviconer.co - Create favicons from customizable text.
Icon Slate - Icon Slate lets you easily compose, import and export desktop icons in many formats.
Ordinatore - Those who want to tidy up their Macs will surely love this application.
IconXP - IconXP is an icon creator to edit icons. You can make icons for windows XP with this icon program.