In The Elder Scrolls Travels: Stormhold the player may increase the weapon or armor value of an item by 3 in exchange for crystals.
Any weapon or piece of armor may be enchanted so long as the player gives Helga enough crystals to bring her Aid points up to at least 7. Once you choose the "Enchant" option in dialogue, you choose what you want enchanted, and its rating goes up. Helga looses the 7 Aid Points and returns the item to the player. Each item can only be enchanted once.