I gave a blessing way shower for a friend. Since we were all of different religious beliefs, I asked that each of us take out of it what we want KWIM?
Anyway, I bought light pink ribbon (since some say pregnant have a pink aura about them) and we sat in a circle with the mom-to-be in the middle. We wrapped the ribbon around our wrists until everyone was connected with the ribbon.
Then, we cut a section of the ribbon off, enough to tie around our wrist. As we cut the ribbon we gave our mother line ex. I am Ann, mother of...., daughter of...., granddaughter of.... We then spoke of one trait our own mothers had that we wish the unborn child to be blessed with.
We tied the ribbons around our wrists with the intention of keeping them on our wrists until the mom-to-be has her baby.
That way, when she looks at her wrist she'll be reminded of the circle of friends she has supporting and loving her...and...when we look at our wrists, we will be reminded to say a prayer, positive thought, etc. for her and her baby.
It was a very moving and empowering experience.
Just an idea...good luck!