We're gonna try a fastener in one of Ben's on-hand colors first, no jig, just how it is: see if the thickness of the PC interferes with the spring or not. Ben's quite confident that i'll work w/o any mods to it. I found that the PSS-4009 & the RAL-2003 are the two best matches for PC'ing the fasteners in Gulf colors. Plenty of people make colored rivets too