I so wish I could roll my r's to say the word rrrrrrruffles. A feature on ruffles was hands down my choice for the letter 'R'. I love ruffles and I love how they have evolved throughout fashion history from their glamorous use in the 1930s, to their bohemian turned girl-next-door look of the 40s to the domestic goddess look of the 50s. Ruffles as a garment feature can be both classy and playful. In my own style preference which is probably closest to a 1940s 'femininely tailored' look, I love pairing ruffled blouses or collar ruffles with tweed and other woolen suiting fabrics.
Here's some images (via Vintage Pattern Wiki and Etsy.com) showing the use of ruffles throughout the decades in sewing patterns:
My Me-Made Creations with Ruffles:
Photos 1 & 2: 1941 McCall Apron, Photo 3: Deco the Halls 1933 Tunic and Photo 4: 1944 Simplicity ruffled dickey
What about you? Do you like wearing ruffles? Sewing ruffles?