Bricksnbeatles
Member known well
Solder? Heat shrink? Lapped or lashed joints? Nah! Facebook knows the real secrets. Thanks for the brilliant tips, 5-Minute Crafts. 
No and no but yessssssssss. Can you imagine the marketing for ultrasonic welded pedals?If you really hate soldering, and have $40,000 knocking around, an ultrasonic welder is what you really want:
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The welds look weak, but they're by far the strongest & most reliable splice joints in the business. Your wire will fail long before you can pry the strands apart.