Birthday Cake, Balloons, & Flowers You could show up with birthday cake. You could show up with flowers. You could show up with birthday balloons. All equally sweet birthday surprises, right? Showing up with all three, however, is really going to make you stand out as their special day super hero. The sweetest part of all? That scrumptious cake is small enough for the guest of honor to make a decision: to share or not to share their delicious birthday gift. Cake serves 3-5.