Bake your favorite 1-layer cake recipe or mix in sheet pan. Cool cake in pan on wire rack 10-15 minutes. Remove from pan and cool completely. Place on foil-wrapped cake board.
Choose 3-5 favorite photos. Make color copies of the photos; laminate color copied photos.
Ice cake top smooth with ivory icing and sides in brown icing. Pipe tip 21 shell bottom border. Use smooth side of tip 2B to pipe frame on top edge of picture. Position laminated photos on cake. Cut spice drops in half horizontally and position on corners of photos with dots of icing. Pipe tip 13 shell border around center photo. Attach icing decoration message with dots of icing. Randomly sprinkle confetti decorations.