There are many options to bustling. The typical wrist loop is most common but it is also an option to have a train hoop that the train is threaded through and then hung on the bride's wrist. I have also seen brides fling the whole train over their wrist. All 3 of these options leave a bride with a sore wrist if she does it through the whole night of her reception so I don't recommend them. The wrist loop and hoop are both lovely for the couple's first dance, or as in the picture in the heading of this page, the bride/Father dance.
