The 3.5" x 2.75" photo books are only $2.49 each right now, so you could get eight FREE with your gift card. And shipping is cheap- just $.99 for the first one and a dime for each book after that- which means all eight copies shipped for just $1.69!
The photo books are small, but I think they would be really cute as a thank you gifts to your bridesmaids. Fill them with your favorite memories and then tuck the book into a cosmetic bag or clutch. And I imagine these also would be a big hit among the flower girls and ring bearers or as a fun gift to the grandparents too. Plus the size makes them super easy to make- I just made one in 7 minutes, which is about four days less than a regular photo book takes me. I am definitely loving this deal!