Vaults of the Artificers loot/Resource trade

As of Update 12 Patch 1, ingredients gathered in challenges can be exchanged as following.

Low level
Recipes:
 * 20 Antique Coins for 10 Obsidian Arrowheads
 * 20 Obsidian Arrowheads for 10 Crude Talismans
 * 20 Crude Talismans for 10 Antique Coins

Mid level
Recipes:
 * 20 Illuminated Manuscripts for 10 Jade Scorpions
 * 20 Jade Scorpions for 10 Necromantic Charms
 * 20 Necromantic Charms for 10 Enchanted Armor Fragments
 * 20 Necromantic Charms for 10 Mephit Wing
 * 20 Enchanted Armor Fragments for 10 Illuminated Manuscripts
 * 20 Mephit Wing for 10 Illuminated Manuscripts

High level
Recipes:
 * 20 Jeweled Goblets for 10 Crystallized Magma Shards
 * 20 Crystallized Magma Shards for 10 Orthon Metal Scraps
 * 20 Orthon Metal Scraps for 10 Arcanaloth Scrolls
 * 20 Arcanaloth Scrolls for 10 Jeweled Goblets

Epic level
Recipes:
 * 20 Epic Jeweled Goblets + 1 Epic Dungeon Token Fragment for 10 Epic Jade Scorpions
 * 20 Epic Jade Scorpions + 1 Epic Dungeon Token Fragment for 10 Epic Orthon Metal Scraps
 * 20 Epic Orthon Metal Scraps + 1 Epic Dungeon Token Fragment for 10 Epic Arcanaloth Scrolls
 * 20 Epic Orthon Metal Scraps + 1 Epic Dungeon Token Fragment for 10 Epic Mephit Wings
 * 20 Epic Arcanaloth Scrolls + 1 Epic Dungeon Token Fragment for 10 Epic Jeweled Goblets
 * 20 Epic Mephit Wings + 1 Epic Dungeon Token Fragment for 10 Epic Jeweled Goblets
 * 20 Epic Mephit Wings + 1 Epic Dungeon Token Fragment for 10 Epic Illuminated Manuscripts
 * 20 Epic Illuminated Manuscripts + 1 Epic Dungeon Token Fragment for 10 Epic Crystallized Magma Shards
 * 20 Epic Crystallized Magma Shards + 1 Epic Dungeon Token Fragment for 10 Epic Necromantic Charms
 * 20 Epic Necromantic Charms + 1 Epic Dungeon Token Fragment for 10 Epic Mephit Wings
 * 20 Epic Necromantic Charms + 1 Epic Dungeon Token Fragment for 10 Epic Enchanted Armor Fragment
 * 20 Epic Enchanted Armor Fragment + 1 Epic Dungeon Token Fragment for 10 Epic Illuminated Manuscripts

Source
http://forums.ddo.com/showpost.php?p=4192978&postcount=25