Basicaly just a pencil sinker that has a swivel instead of an eyelet. Like the drop shots just with a regular crane swivel instead of the drop shot swivel. The main probem with the drop shots is I always use a sliding sinker. Will have to call do-it and see if that mold will take a regular crane swivel or not.

http://www.jannsnetcraft.com/fishing-tackle-swivels/311300.aspx

Those swivels in a regular pencil lead mold. I guess I could modify the molds but I would screw them up.