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How to create irregular wavy line pattern (reference attached)
Can anyone help me figure out the best way to do an effect like this in Illustrator? Zig Zag and Warp effects all only seem to do a very regular/repeated pattern. 
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Figured out a pretty good method. Following up in case it helps anyone.
Start in photoshop with a straight rectangle. Apply the "liquify" tool and make it a smart object. Then use the liquify tool to draw stretch the line with straight horizontal strokes (hold shift to make sure they're straight). Vary the brush width for some variety.
Save the image as a PNG, and import into Illustrator. Use the Live Trace tool to expand and make it a vector object (be sure to check "ignore white"). Duplicate the line horizontally. Voila.
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