Jai Mala
In the ceremony of Jai Mala the couple exchange betrothal garlands. Purchase silk flowers from a craft store and let the girls make flower garlands by stringing flower heads and petals together. If you have a yard that has an abundance of blooms, you could let the girls pick fresh flowers for their garlands. Red roses are traditionally used in these garlands.
Saris
Wedding saris, also known as lehngas and sarees, are generally highly ornate and lavishly decorated. Give each girl a length of cotton fabric that she can decorate to create her own unique sari. Have plenty of fabric paints, especially gold, available and lots of embellishments such as sequins, beads and gold trim.
Menhdi
Menhdi is the adornment of the bride's palms and feet with painted designs using henna paste. Traditionally, both the bride and groom's names must be hidden in the intricate designs, and the wedding ceremony cannot start until the groom has found both names. The bride is not expected to start doing housework after the wedding until the Menhdi has faded away. The girls can use non-permanent eye pencils to create Menhdi on one another's hands and feet.
Fashion Show
If you have a large number of girls, you could divide them into two or three teams. Each team will select a bride to dress and make up as an Indian bride for a fashion show, where team members will show off their work. You could even take them all to a thrift store and a craft store, giving each team a limited amount of money to spend on finds, which they will turn into their Indian bridal outfits. Alternatively, you could give each team exactly the same items, from which they must make their bridal creations. This is also a good team-building exercise that will help the group members learn to work together with the purpose of reaching a common goal.