I have a fascination with anything to do with weddings, particularly something that is imaginative and creative. I came across this article about how to ask your friends to be your bridesmaid on your big day. With you friends maybe leaving anywhere in the country it is not always easy to go out for a drink or a lunch and ask them personally. It may not be something you want ask over a random text.
See if this article stimulates some ideas. How wonderful it must be for your best friends to receive such a parcel when it arrives on their door mat.
Read the full article at www.weddingchicks.com/2011/08/03/willyoubemybridesmaid/