The Groom for our wedding at the Central Park Boathouse was doing his PhD in mathematics, so he decided to use mathematics problems on their escort cards. These ranged from simple additions to matrices and logarithms for his University math colleagues. We were of course on hand with a master sheet to help any guests who got stuck. I love adding personal touches like this that reflect the Bride and Groom. The Bride beautifully hand wrote all the Atelier Isabey escort cards, their ketubah, and addressed their invitations for a 200 person wedding!