Thanks all
For the record I'm averse to crimped-on ends since their removal usually ends up shortening the cable if cut; meaning you only have a finite number of removals and refittings. I have had some success with squashing the crimped-on ends across the crimp to remove them, but this has proven somewhat hit-and-miss and tbh I'd rather have nowt on the end if I can get away with it.
I'd not considered using nipples before; I have some kicking about but assume this would only work with one size of cable (brake and gearing being different ODs at around 1.6 and 1.3mm respectively)..?
Looks like solder is unfortunately out as I run stainless cables.. although ideally I'd like something like this that will penetrate into the cable and bind the strands together without increasing the cable's OD. I had considered superglue so might give that a go.. I notice that most cables are often fused at their ends when new to facilitate passing through the outers - I wonder if this could be replicated with common tools..?
I'd not considered heat shrink tubing - sounds like a nice idea, however again would probably require removal to get the inner through the outers, unless it was really thin (as there's usually a bit of waggle room inside). I'll maybe look into this a bit more..
At the moment some of my cables are left raw, however that's more through indecisiveness / lack of commitment than an actual plan
I love the look and idea of the cable cherries, however that'd be knocking on the door of £200 to do five bikes!