A sewing pattern is a type of embroidery that resembles hand sewed embroidery in a pattern that seems traditional or floral and makes a dress more impromptu and handcrafted in appearance. This could be just the thing for a casual get together or to impress your friends that you found something that is clearly bohemian or ethnic. Of course, you can make these yourself, in which case you can always buy a book and patterns on a page to help you, or you can find dresses with easy sewing patterns over the web.
It is better to shop for this type of thing over the internet. If you look for it in a store, then you might find an isolated example and not a selection. Since this is something personal anyway, it pays to find a selection and choose a pattern that is exactly right for you.