Samsontech used to make a line of armored cable, where it literally had a flexible coiled-metal sheath around the length of the cable, but they were discontinued a few years ago. Some of the most rugged ones currently available include:
Armor Gold Cables Solid Cables "Dynamic Arc Ultra" Low Capacitance Cable FenderŪ Products
...whether they are "worth the price", or whether any of their tone claims are in any way true, that's up for debate. But they are absolutely rugged as all ****, no question.
For cheap, the most rugged IMO are the DiMarzio fabric-covered ones, and they sound great too.