[Vanya]

Although the Sting is very usefull as a Orc alarm, I would really like to have Bilbo's mithril mail. It saved Frodo's life few times, and after war it can be used like a bank savings, since it's worth more than whole Shire.
Also, I would like to have Galadriel's phial, because I hate dark, and in those days without electricity and bateries it was valuable and usefull possesion.