Extrude selected face along edge loop path.
Location:
Edge menu - Extrude Path (at the bottom)
or
RMB (right mouse button click) - Extrude Path (at the bottom)
Usage:
As simple as selecting one detached face and edge loop and running the script.
Updates:
0.0.2:
- added ability to make caps if extrusion loop is open
- added ability to rotate final extrusion