The fours come up occasionally, but this is a rarity AFAICT.
https://www.ebay.co.uk/itm/Yamaha-BX5-BX-5-80-s-type-headless-5-string-bass-guitar-with-hard-case/223040898494?hash=item33ee4605be:g:-OUAAOSwZrdbOS61
Yes. Most of the pics don't do the colour justice - look at the last one, that's a lot more like the real thing. (Not that I'd mind a pink one, personally, but the seller's not helping their own cause.)
They make lots of sense to me. Getting the colour right is maybe a little more awkward though?
Or maybe they should be inlet by about half a millimetre?