Image pack to GIMP brush in five easy steps

Probably a good resource - how to convert image pack images to GIMP brushes in five easy steps.

BTW, this works in GIMP 2.2 [the latest stable build; if you downloaded it prepackaged, you probably have it.] I don't know if any other version of GIMP has this specific Script-Fu already installed.

( Fake cut to gimp_users entry... )