Valentine’s Day Stacking Boxes. Designed to look like antique hat boxes, these oval cardboard containers are pretty storage containers and clever gift wrap! Display our set of stacking boxes together, or separate them for charming accents in three rooms in your room. Our set includes three storage boxes with the sentiments: "Be mine", "Always and forever" and "Happy Valentine's Day". 5 3/4" to 8 1/2"W.