My Fender 50th Anniversary Stratocaster. U.S. made in 1996 to celebrate 50 years of the company.There's a lot of tosh talked about the various models they brought out at about that time, but this is the series of special limited editions of their primary model ranges - 2500 for each of them except the Strat and - I think - P-bass Lefties, which were limited to 250 worldwide and 50 of each to the UK market IIRC. Not a custom shop guitar as such, just a very nicely made guitar with one or two unusual touches. Actually gigged it a couple of times too.
Guitars - even expensive ones - come and go, but that one was a bit special to me. Not particularly valuable I don't think (perhaps a bit extra for the Lefty rarity), but even so...