Collar Calculator
Attention! This program is no longer being maintained. It has been superceded by the Inkscape extension Collarz.
Collar creates an output svg file that contains a single object, with tabs and scores that has a polygons of specified sizes at the top and bottom. It also contains two polygons that match the size of the top and bottom, and an object that can be used to cut a decorative cover or overlay over the piece once glued.
See the file collar-help.pdf for details.