Club Penguin has added even furniture for the brown puffle. If you go to the Brown Puffle Cave again, you can get a Puffle House for your Brown Puffle. It is located in upper left and it is free. Check it out:
The house is different from the other Puffle Houses, in a good way:
Awesome furniture item, non-members should have the new puffle and the house too!
-Andreylaur, Blog Owner