Basically there are three suppliers of pen kits. Penn state industries (P.S.I.), Craft supplies USA (CSUSA) and Berea.
they each offer there own styles, and they also all offer many styles that seem the same. quality, and platings will vary even on those kits that seem the same.
All other suppliers sell the same kits as the main three but at lower prices. exception CSUSA does not have a retailers program any more. you have to go directly to them for there kits. some of the other suppliers have been listed in threads above. woodenwhimsies, woodturningz, pens of color, and Arizona Shillouette (AZ), come to mind with out having to think to much. links to them can be found in the links area under suppliers. as for blanks, AZ tops my list there. but you can get them from any of those suppliers or right here in the classifieds.