As a kid Valentine's Day was the best. At one of my schools (for I had many), we had a Valentine's Box contest every year. The kid with best box, won a prize. Thanks to my very creative mom, I won a couple years in a row. The best one we did was the size of a small moving box. We cut 2 holes in the top and one in the side. Then created a slide from one of the top holes to the side hole. It was then covered with aluminum foil, with a flap covering the side hole so no one knew it was there. It was great because depending which slot the valentine got put in- it was either accepted or rejected by process of the box!