First of all, she should select the dress that she wishes to improve and should try it on and have a look in the mirror. She will have to decide whether a specific aspect in the dress needs to be changed or if she would like to add additional detail. It would be better to try the dress on before beginning with the customization process since it will enable her to focus on the areas that need betterment.
Embellishments can be added to the prom attires to further enhance the beauty of the dress and dramatic changes can be brought to the dress by adding some jewels or sequins along the neckline or to the bottom in case the dress is a skirt. There are craft stores from where inexpensive gems can be found and these gems can be sewn to the clothes for enhancing the attractiveness of the dresses. It can be made as a designer dress by adding jewels to the seam lines of the dress. She can add appliqué to the skirt of her dress and a sparkly appliqué can draw attention to specific areas like legs and if the dress has thick straps, she can add sparkly appliqués to the shoulders.
She can purchase tulle of a contrasting color to the dress to offer a fuller shape to the underskirt. There are expert designers offering the services of adding extra designs to the dress and to add more color to the underskirt an inch of the dress can be left poking.
Rather than making so many adjustments to an old dress, girls can go for new prom dresses and there are websites offering the service of enabling the people to find stores from where these dresses can be purchased. These websites enable people to find different variety of clothes for prom. Even the aforesaid modifications can be done to the newly purchased dresses to further enhance the beauty of the attire.