Rub a 5-in/13-cm square wooden board with shortening.
Roll the fondant to ⅛ in/0.3 cm thickness, lay over the board, and smooth out. Trim the fondant to the bottom of the board with a paring knife and attach a ¼-in/0.6-cm ribbon at the edge to hide any inconsistencies. The ribbon should match the colors of the panels for the cake. A small dot of hot glue can se