Bridal Showers are thought to have originated in Holland.  If the brides' father would not offer a dowry because he did not approve of the marriage, her friends would shower her with gifts.  This would enable her to marry the groom of her choice without needing her fathers help.  Today Bridal Showers serve the purpose of friends giving support to the bride as well as providing gifts to set up her new home and life.  It is nice to reward those who attend with bridal shower favors.  Surprising the guests with a unique or personalized gift is very much appreciated.