Like this.
*snip*
I think the white with those buttons looks fantastic but the green and red being swapped around when held like that would drive me nuts
Is it just the UK they don't sell it or the whole or Europe?
I haven't actually looked but the next time I am in the stores I'll look for you. If I see a red set I'll let you know. I am in the UK next week so maybe I can help out

- I'll take a look for you!
Oh, the coloured buttons? Of course,
they are optional (and I'll be honest in that I don't like them either, so I'd not use them). If you remember the video I posted, the very end you'll see that the guy has black buttons with the gold joycons. So you can keep the existing buttons. Matching colour issue gone. All it is, is just the actual plastic bit that makes up the joycon. It's not a skin or anything like that, it's an alternate way to get coloured joycons.
And yes, they are unavailable anywhere in Europe (base.com sold them but has been out of stock for months), looks like they just plain ain't selling them. And in the US, it's sold out most places. A shame that Japan is the only place that gets custom order Switches (aka any colour joycons you like out of all the officially released ones so far, with your switch).
Heck, I wouldn't mind swapping my grey joycons with someone who has the blue-left/red-right pair that comes with the neon Switch. Or even just swapping a right blue for that right red, since regular red-left/blue-right joycons are available in some places. Is it too much to ask to want nice looking joycons?
The parcel arrived while I was at work (I'd post pics but it's still in bubble wrap and I'm too tired). It seemed to be wrapped in bubble wrap within a 2nd box and the invoice was hilariously low (like a quarter of it's actual price, cos of taxes ofc). The Switch box is smaller than I thought. Videos and images make the Switch look bigger than it actually is.
Now I just need some games besides Monster Hunter to play on it, I'm not sure what to get. Amazon currently has a nice offer of £5 off £35+ orders and £10 off £75+ orders until Monday. I'd probably pre-order Mario Odyssey, since it doesn't really have any special bundles or anything, but I can't say the same for Xenoblade, which doesn't even have a release date or box art yet. Only thing putting me off Mario Kart now is that I still have it on WiiU and we still play the WiiU...
Edit: The Joycon plastic replacements cost £16 for a pair btw. Not exactly 'cheap' (for some plastic). Each to their own though.