(n.) A ruche, or ruches collectively.

autolithograph be a printmaker carve character chisel cocker cockle corrugate corrugation crankle creasing cribble crimp crimple crinkle crisp crosshatch crumple cut dog-ear double double over doubling duplicature enchase enfold engrave flection flexure flounce flute fold fold over frill furrow gather grave groove hatch incise infold inscribe interfold knit knot lap over lapel lappet line lithograph make prints mark plait plat pleat plica plicate plication plicature ply print pucker purse quill ridge rimple ripple rivel ruche ruching ruck ruckle ruff ruffle rumple score scrape scratch sculpture shirr stipple tool tuck turn over twill wimple wrinkle