Scripting in Perl
Make a blurry border around the selection and make everything else transparent. Designed for "highlighting" part of a screenshot or other large image.
Renders a barcode image - either stand-alone or in a floating selection.
Screenshots and download: http://69b.org/cms/software/gimp#barcode
Unless otherwise noted, the rights for the individual plugins are with their respective authors. Logo image by Jakub Steiner.