All you need is a hemming foot (see pic above). Some sewing machine does not have accessories especially for extra presser feet.. But my Janome comes with 15 presser feet (if I count the number right.. ) for free..
This is an alteration process of my friend Auntie J's dress.. she needs it shorter a bit... So, I just shorten the length of the dress and sew this rolled hem to it..
I prefer rolled hem on dresses, blouses, ruffles, linings, tablecloths, scarves and any tiny hems, not only its neat but it can be a stylish way to finish your final touch-up...
Its so easy to make.. but needs practice, cos it might not come out as you wanted... if you have lost patience... I tell you..!