www.redco.com makes custom cables and they are cheap when compared to what those cables will sell for retail.

I bought an 18ft Mogami cable with gold Neutrik 1/4" ends for <$30 and that same cable would cost ~$70 if you buy the packaged Mogami cable at any store

They also have Canare wire which is excellent quality also
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
^ Woah. That site is neat-o.

Also, Amazon sells some decent quality cables for cheap. I bought a 4-pack of patches for $12 USD not too long ago. If you learn how to solder 1/4 cables, you can make your own with just some extra cable length and connectors, which is the most cost-effective and efficient way. Cable kits are expensive though, so buy your own materials.
If you can solder (Instrument cables are super easy), you can buy the wire in bulk from RedCo, throw some Amphenol ends on them and call it a day. Should be like $15 for a 20ft cable, depending on the wire you buy.

Otherwise, you can get 10ft cables from Reverb for $7 or 20ft for $9 and they're pretty good quality for the price. Livewire are cheap too and not too shabby for low money, consider they have Neutrik ends that cost a good bit.
Quote by Dave_Mc
I've had tube amps for a while now, but never actually had any go down on me
Quote by jj1565
maybe you're not saying the right things? an amp likes to know you care.

Monoprice now sells instrument cables that are getting good reviews. $20 for 50'.