Here are some frequently asked etiquette questions. Traditionally, this is hosted by the bride's parents, but in recent years this has opened up. Now, just about any relative on either side can host the party, as well as friends of the bride and groom. The hosts should be thanked with a small gift, flowers or perhaps a dinner invitation. I understand I should purchase gifts for my attendants.
Bridesmaids are responsible for the purchase of the dress, shoes and all accessories.
They should pay for all transportation to and from the wedding. Etiquette also says they should purchase an individual gift for the couple and share the cost of a luncheon, shower or co-ed party. My father passed away last year. A single rose on the alter, with an explanation in the program would be fitting. You could include a meaningful verse or quotation or a personal note, as well.