Litch, on Myspace, says:

 

I saw this on MuggleNet once and it really got me thinking…..JKRowling came up with the four Houses with a specific element in mind. (This is true, she really did do this, not a theory)
Gryffindor – Fire
Slytherin – Water
Hufflepuff – Earth
Ravenclaw – Wind

Considering that for the Horcruxes we have the piece in Voldy himself, the diary, the ring, the cup, the locket, nagini, and something of Ravenclaws’ (Yes Ravenclaw! Not something of Gryffindors cause Gryffindor already has a sword and if he gets the Horcurx too than Ravenclaw is left with nothing.)

Alrighty, so we have Slytherin’s Locket, and Sly’s element is water. And the location where the locket was hidden was very watery. In the cave, the blood tribute, the ocean, the lake, the potion.

therefore, it is believable that voldy hid Huffy’s Cup and Raven’s item in locations haveing to do with their respective elements, earth and wind.

Hufflepuff – As we know the Bones family is a long line of Hufflepuffs, and I have to double check my facts on this, but Amelia Bones is dead and I believe the last descendant is Susan Bones at Hogwarts with Harry. And since the Bones’s are such a huge line of Huffy’s it is believable that the cup is buried in the grave/earth of Amelia or another Bones relative. Likely protected by things like living trees and attacking roots, kinda like the maze in GoF. Maybe Susan Bones will hold the key to getting it.
Also, it is clearly stated that Voldy killed Amelia Bones HIMSELF. Now why would he risk coming out of hiding for this particular person? Maybe he knew that one of the last members of such a strong Hufflepuff ancestry would be able to retrieve the Hufflepuff Horcrux or maybe she knew something about it and Voldy had to make sure she was silenced.

Another theory is Zacharius Smith, a Hufflepuff at school with Harry, is theorized to be related to Hepzaba Smith, who is a direct descendant of Helga Hufflepuff. Therefore he could be related to Hufflepuff, so maybe he holds the key to retrieving the cup.

Ravenclaw – Element is wind. therefore it is very likely that her horcrux will be hidden in the sky. Protected by things such as that. Shouldnt be too hard for harry teh great flyer to get it down.
But what exactly is Ravenclaw’s Horcrux. I think it will either be her wand or a tiara. The wand has the attributes of her element, wind, being swished and flicked around. But Im leaning towards the tiara because the Grey Lady, the Raven House Ghost, is described as wearing a tiara. Also, in HBP Mrs. Weasley tells Fleur she can wear her great aunts old tiara for the wedding. and lastly, in HBP when harry is hiding the Potions book in the Room of Requierement, he hids it in a wardrobe and puts a bust on top and a tiara on top of the bust.

Well, these are just my opinions mixed in with MuggleNet.

 

To which I replied:

very well thought out and farther than I have gone in the houses-elements line. Fleur and the tiara fits with Jason’s thinking, which links her with Hufflepuff and Krum with Ravenclaw, which also makes a lot of sense with your wind analogy (maybe air is a better word, but I won’t argue).

What trips me up is this – water is the element of – LOVE. It’s main symbol – the moon – Is Luna Lovegood the true slytherin elemental archetype?