thin squiggly lines. wavy wiggle stripe pattern decoration. curvy thread or yarn lines for ornament, decor, separate

line wavy squiggle abstract background shape curve organic thread drawn texture irregular sewing wave tangled vector continuous thick tangle long thin infinity strip chaos horizontal draft chaotic frizz sketch knot linear scrawl brush rope cable wiggle undulate wiggly flow scribble wobble squiggly curvy black doodle drawing pattern decor string