Meanwhile, in medium bowl, beat all icing ingredients on low speed until smooth, adding water if necessary for drizzling consistency. Remove cake from freezer. Trim outside edges of cake to create a 10 1/2x7 1/2-inch rectangle. Cut into 7 rows by 5 rows, forming 35 squares. Place on 2 large cooling racks set over sheets of waxed paper. Using fork or spoon, drizzle and slightly spread each cake with icing. Top each with coffee bean and 1 sliced almond. Let set, about 15 minutes. Flatten 35 mini paper baking cups slightly. Place 1 cake bite on each paper. Cover loosely to store.