Follow these easy steps to make your very own icon:

^Create a folder that should be names as your them. Ex. My Icons
^Place 64 x 64 PNG images in respective your Icons.
^Label each of them after name of the APP.
^WinSCP the whole folder to "stash\themes".
^Go into Winterboard and Activate the themes.
^You're all set and ready to use your custom made icons and show them to your friends!