Iceweb Spider Silk

Source
Iceweb Spider Silk drops from the following:


 * Darkweb Recluse in Drak'Tharon Keep
 * Dread Creeper in Naxxramas
 * Venom Stalker in Naxxramas
 * Carrion Spinner in Naxxramas
 * Crystalweb Spitter in The Storm Peaks
 * Crystalweb Weaver in The Storm Peaks
 * Icetip Crawler in The Storm Peaks
 * Trapdoor Ambusher in Zul'Drak
 * Trapdoor Crawler in Zul'Drak

As an ingredient

 * Tailoring
 * Magnificent Flying Carpet
 * Brilliant Spellthread
 * Sapphire Spellthread
 * Azure Spellthread
 * Shining Spellthread
 * Aurora Slippers
 * Black Duskweave Leggings
 * Black Duskweave Robe
 * Black Duskweave Wristwraps
 * Cloak of Crimson Snow
 * Deep Frozen Cord
 * Frostguard Drape
 * Frostmoon Pants
 * Hat of Wintry Doom
 * Light Blessed Mittens
 * Silky Iceshard Boots