#13 Wear your badge with pride
Of course there are many contenders for the rarest KISS pins, but the two I have chosen are the "Lips" pin, perhaps the earliest piece of KISS merchandise around and back when the name "KISS" was being taken rather literally...and very close to the Stones logo too.
......This promo button was given out a 1974 gigs. This pin has been bootlegged a bit so make sure you check against this photo to make sure you've found a real one.
......The second was the full set of stick pins, Now it's hard enough to find the whole set of necklaces with the same design, but even singular stick pins rarely turn up on eBay an almost never in KISS fans collections. these were available from the Phantom of the Park magazine.