Our small cake slice box is also referred to as pie favor box because of its wedge shape. (Dimensions: appx 4" x 2" x 2") Paper pie slice boxes are one of our more popular boxes used at wedding reception and events. They’re beautiful by themselves, but twelve together form a perfect circle and you can invite guests to grab a slice. Fill them with any small favors. Mints, almonds or macadamia nuts immediately come to mind. Pie favor boxes are small pie shaped boxes perfect for any Party.