I wonder who has a purple kaukau? That would be cool or a translucent glow in the dark kaukau or a lava colored kaukau The "smoke" (Trans. Brown) Kaukau is not really any rarer than other recolored Toa Mata masks to my knowledge. It's the Kaukau worn by Onua, and as such I would expect it to only be as rare as, say, a red Miru or black Kakama.BUUT finding one on eBay is extremely rare and you can't find them on any other website except bricklink or etc so it's rare to me oh also I found an orange ruru in my mask pack yesterday that I also ordered on eBay and got in the mail yesterday so is that considered uncommon or rare? because you can only get the orange ruru in the manas set or if your lucky a mask pack like I gotIn general, masks that are available in both mask packs and sets are less rare than ones only available in mask packs (the infected Hau being only marginally less rare since its availability in mask packs WAS more limited than other masks). So the orange Ruru would be less rare than, say, an orange Matatu.Of course, this many years after the sets came out, rarity is driven just as much by demand as by distribution, since masks that are less valued by collectors will be cheaper and more obtainable than ones with a high perceived value. That probably accounts for the rarity of various Kaukau colors, since their transparency makes them quite valuable to MOCists, and as such there are fewer on the open marketplace. I wish I could use my orange ruru for a moc but I don't have any ideas Look at my album and you'll see a few of my mocs