Lord of the Rings Costumes - Gandalf, Legolas, Aragorn, Frodo, Hobbit, Ringwraith, Arwen Please select a Shopping List. Main (0) OR create a new Shopping List Cancel Adult Arwen Costume - Lord of the Rings. Item # Deluxe Adult Arwen Costume - Lord of the Rings. Did you scroll all this way to get facts about frodo costume? Well you're in luck, because here they come. There are 90 frodo costume for sale on Etsy, and they cost $ on average. The most common frodo costume material is aluminum. The most popular color? You guessed it: brown.