My daughter requested a small throw. On the back I embroidered (by hand) their names and the date of the wedding, and then circling out I included the names of everyone in attendance - with family closest.
For my step-son and his new wife I am having signature blocks for the wedding and am making them a a 60" square quilt and will put the signature blocks on the back incorporated into a darker fabric.
The point being - you can do anything you want! It is a gift !!