DIY Cable
This is a 'cheapo' DIY cable i made for my mothers system,
It's braided AWG 24 copper wire, in teflon tubing covered with tinplated copper mesh and transparent heatshrink.
Terminated with Neutrik goldplated RCA-plugs.

Total cost for a pair of 0,5m Cables was about $10 since i had alot of material around from old projects.
Far from the best but surely an upgrade from the thin stock cables.
And my own cables for use with my portable headphone amp:

4x 32 AWG silverplated copper cable braided, termination is neutriks.