Champion Herod's Shoulder Tattered Dreadmist Mantle wow gold Stained Shadowcraft Spaulders Preened Ironfeather Shoulders Polished Spaulders of Valor Mystical Pauldrons of Elements Venerable Dal'Rend's Sacred Charge Dignified Headmaster's Charge Devout Aurastone Hammer Charmed Ancient Bone Bow Bloodied Arcanite Reaper Balanced Heartseeker Inherited Insignia of the Horde / Alliance Discerning Eye of the Beast Swift Hand of Justice Stone Keeper's Shards
The PvP focused heirloom items technically don't require you to PvP at all, but it speeds up the process. When your faction has just won Lake Wintergrasp, your entire faction gains the Essence of Wintergrasp buff. If you're familiar with Spirit Shards from The Burning Crusade, it's more or less the same thing. You loot the Stone Keeper's Shards from bosses in dungeons while you have the faction-wide buff. You'll typically get 2-3 shards per boss, in both normal and heroic versions of the dungeon.

If PvP is more your style, or you just want to speed up the rate at which you're earning these shards, there are daily quests in Lake Wintergrasp that you can do while you're fighting to get your faction the Essence of Wintergrasp buff. Wowhead has a full listing of those quests for both factions if you want to hunt them down.

These items look like they cost a lot of shards, but considering how many of them bosses drop at a time and you can get the Shards from quests, it's not all that bad. When you have enough Shards to buy what you want, head over to Lake Wintergrasp, pray the appropriate vendor is up, and make your purchases. The following Heirloom items are available through Stone Keeper's Shards: