You can purchase here, from this site, or you can find Cloak of Protection at these stores:
AUCKLAND
Arataki Visitor Centre, Titirangi
Clevedon Woolshed, Clevedon Village (also, Flight of Pollen)
Pukorokoro Miranda Shorebird Sanctuary (Auckland / Coromandel)
Te Uru (Lopdell House), Tirirangi
Tiritiri Matangi Island
Wild Zone, Auckland Zoo
Waiheke Community Art Gallery, Oneroa
WAIKATO
Game Centre, Hamilton
Miranda Shorebird Centre, Pokeno
Maungatautari Ecological Island, Pukeatua
HAWKES BAY
Tauranga Art Gallery, Toi Tauranga
TAUPO
Taupo Museum
TARANAKI
Puke Ariki, New Plymouth
KAPITI COAST
Mahara Gallery, Waikanae (also, Flight of Pollen)
Nga Manu Nature Reserve, Waikanae
PORIRUA
Toi Store, Pataka Art + Museum
WELLINGTON
Expressions Arts & Entertainment Centre, Upper Hutt
Sustainability Trust. Foresters Lane. Te Aro (also, Flight of Pollen)
Zealandia: The Karori Sanctuary Experience (also, Flight of Pollen)
Aratoi: Wairarapa Museum of Art & History (also, Flight of Pollen)
OTAGO
Orokonui Ecosanctuary, Port Chalmers
SOUTHLAND, FIORDLAND, STEWART ISLAND
Rakiura National Park Visitor Centre, Stewart Island