I enjoy incorporating photographs with my decor for celebrations of any kind. I feel it adds a warmth that nothing else can provide. As seen below, I have printed a few old family photographs and nestled them in a folded napkin (with thankful for card behind).
To achieve this simple napkin fold, fold a square napkin in half, then fold the fold up 1/3 to 1/2 the way to the top of the napkin. Flip napkin over. Fold each side 1/4 of the way and then fold in half.