I would like the Waterhouse Lady of Shalott at the Tate, please. https://en.wikipedia.org/wiki/The_Lady_of_Shalott_(painting)
These (or any) Hagenauer horses. Or any Hagenauer really! I'm lucky enough to own this one but mine is sadly quite damaged and awaiting repair when I can find someone able to do it. Oh, and a bigger house please. World peace, Brexit done, and a properly waterproof really warm coat!
I would love a Large ( 5 0r 6 carats would do nicely ) Flawless Natural Alexandrite Gem with Intense color change from Green to Red. I do have some small natural Alexandrites with fair color change, even Have a natural Alexandrite cat's eye, but nothing bigger then .75 carat,
I'd go for a Meeks Henry Ford pattern parlor set. Top of the tree when it comes to materials and craftsmanship. I had a photo but of course it was "too large" and I don't feel like fighting it at the moment. Anyway, E-Boo has the very set I wanted forever and ever; not sure if it's still listed or not. A moot point, since I don't have the scratch.
Twenty or thirty years ago, I might have been able to give a better answer. So many beautiful and interesting things out there. Now, I'd be happy with the financial security, and the sense of having choices. That said: a small handful of nice snuff boxes would be... um... nice.
What I really want is a cure for MS, and other auto-immunes, but you can't put that on a shelf or in the driveway. They said holy grail, not impossible dream.