I can't use the dwarven rings, because all of the Rings of Power made by Sauron lost their power when the One was destroyed. And indeed the rings from the same process not directly made by Sauron — Narya, Nenya, and Vilya (the Elven Rings) — also lost their power at the same time. Unless I pull a "somehow, Sauron returned", those particular artefacts are no more than mathoms in the Fourth Age, a mathom being a Hobbit word for thing that is no longer useful, but you don't want to throw it away.
That said, history may start to rhyme, as they say. And there should definitely be new artefacts of power, both magical and technological.
That said, history may start to rhyme, as they say. And there should definitely be new artefacts of power, both magical and technological.
"Kitto daijoubu da yo." - Sakura Kinomoto