Ren & Open
He's pretty much always liked fireworks the best, and Ren did bring some things with him after stopping at a place on his way back from the Capital. It's also something he can do pretty easily, and he'll claim he's got a 'fancy system', but he's totally lighting those suckers from a distance with the Force, cause he doesn't give af right now.
He'll do about fifteen minutes of fancy pretty ones that go up from the dock over the lake for anyone in the house, or around the lake in general to enjoy.