Rey Lightsaber - Star Wars IX : Rise of Skywalker
"That lightsaber was Luke's. And his father's before him. And now it calls to you."
―Maz Kanata, to Rey
At the end of the Star Wars The Last Jedi we saw the Skywalker lightsaber broken in two as Rey and Kylo Ren fought over it.
However, in the Rise of Skywalker we've seen that same lightsaber back in one piece.
The lightsaber has a new band in the middle, which is meant to be the piece that Rey has used to hold the two segments together.
It's a nice look and overall doesn't make it obvious that the thing was ever broken.