This simple pattern hack will show you how to make a darling on-trend bell sleeve baby dress DIY for the little bundle of joy! Take a break from pink by using this beautiful blue and green floral fabric; it's the perfect addition to any little girls' wardrobe. Read on for the ruffle sleeve tutorial and details on this gorgeous quilting cotton.eautiful blue and green floral fabric; it's the perfect addition to any little girls' wardrobe. Read on for the ruffle sleeve tutorial and details on this gorgeous quilting cotton.