Here's an infant butterfly romper that camomma recently made. This romper doesn't require a complicated pattern, and can easily be scaled to any child's size. The shoulder straps and the elastic at the back ensures that it will grow with the children. This little dress could be made out of heavier fabrics for the colder winter months such as velvet, velveteen, fleece, or a heavy knit fabric. Perhaps try re-using a large sweater to upcycle. The ruffles could also be replaced with a flat or gathered lace. This dress is obviously very versatile and girly! Pop it over a turtleneck sweater and you've got an ensemble that your little girl can wear again and again. See how she did it!
How to Sew Napped Fabrics (like velvet and corduroy)