My mom wants bridge cards for Christmas. As far as I can tell, they are a set of two decks of cards with similar, but different designs on the backs. She has some on her wish list on Amazon. But I recently noticed that you can have cards printed with photos on Shutterfly. Would it be tacky/bad form to have two decks of cards with her grandkids on the back of each deck (one kid per deck)? They would be coordinating I guess.