Here's a ruffling trick, for those without a ruffler ........
Use dental tape, and wind the start of it around a pin to keep it in place.
With a wide zig zag stitch, zig zag over the dental tape, all the way along where you want your ruffle.
Be careful to not catch the dental tape.
Now just pull the dental floss to create the ruffle ... make sure that start of the floss is well secured or OOPS!!!
Fast and slick .... and once the stitching to secure is done, you can remove the dental tape if you wish!