I saw a Haunted Mansion wristwatch one time at a Disney collectors show.
It was, in my view, *gorgeous*. It had a picture of the mansion at night on the face, and on the hour, (if wanted) two small pictures of the stretching portraits would emerge from either side of the watch, while lightning flashed in the background and the Haunted Mansion theme played !
It was *amazing*, as was it's price: $1,200. I just couldn't afford it back then, but it's stuck in my mind all these years.
(OK, I can't pick just one

)
Also back in '94, ( I know, because I still have the catalog

) Royal Dalton released an Alice in Wonderland tea party set. It had the long table and each of the characters sitting around it, all in separate pieces, even the tea pot and the "half a cup" of tea, and of course Alice at the head of the table. But of course, it was $999.
Like most high-end Alice merchandise, it sold out almost immediately, and I've been searching for it ever since.