I LOVED doing this cake! It was for a friend's son. For the cake I used 4 8x8 square WASC with buttercream between and covered in fondant. Large rocks are fondant. Also flags, crest and draw bridge are all fondant. Small rocks around the bottom are chocolate rocks. The towers are actually pringles cans covered in fondant. Moat is piping gel with blue coloring. TFL!