Hafu - Ruru, Taipu - Pakari. Pakari on Metru Nui, and Ruru on Mata Nui. Hmm... that's a good question. Tamaru is impossible to create; but Kopeke could be made with a light blue Komau and a sand-blue legs (from Matoro).
My rare collectibles: Trans-Neon Green Miru - BrickLinkOrange Vahi - eBayGold Vahi - from special version of Vahki NuurakhDisk of Time (199) - from special version of Vahki NuurakhCopper Huna (US) - Toys "R" Us promotionRua - BrickLinkBlack Matatu, White Ruru - BrickLinkLight Purple Krana - BrickLinkHau Nuva Poisoned (all 4) - BrickLink All my collectibles on Brickshelf.