GIMP Plugin Registry

This script simulates a yellowed and slightly jagged border like these of old photographies.
Copy it into the scripts folder from GIMP, you will find it then under Filters -> Decor -> Antique Photo Border.
Examples:
http://www.flickr.com/photos/28653536@N07/2842947808/
http://www.flickr.com/photos/28653536@N07/2863559734/
http://www.flickr.com/photos/28653536@N07/2852024148/

If you like it, hug someone.

For all scripts together, go here:
http://sites.google.com/site/elsamuko/gimp