Who make the pretiest cables, cords out there?

Very, very much in the eye of the beholder, but here goes:

Argento Flow series: sober, timeless design, very much on account of the connectors
berTram ProXima series: no, I'm not drunk, that's the way it's written and the cables look just as flashy and unique (I believe)
Siltech Royal Signature series

Luckily, all of these are also in the Champion's League in terms of performance (sadly, also in terms of cost)

Botox Cable Company

So pretty you'd swear they weren't real.

Whoa, don't give anyone ideas, Bill. I can see it now: our cable's proprietary botulin ingested teflon insulation prevents the ephemeral crackling caused by creased molecules that will otherwise make your cable sound digital (warning: do not sniff, smoke, eat or whatever).