My son wanted a Destroyer Monster Truck Birthday Cake Design for his 5th birthday. It is made of a 9x13 cake, 24 unlined cupcakes, 9 large pretzel sticks, and 4 doughnuts.
Other supplies used: 9x13 pan (be careful because a 9x13 pan doesn't always make a 9x13 cake. I had to actually measure the insides of my pans and only had one that actually made 9x13), muffin pan, jelly roll pan, knife, aluminum foil, plastic wrap, construction paper, toothpicks, 2 Thomas the Tank bridge supports, board cut to 4.5x13, Graham crackers, chocolate chips, candles, dipping chocolate, 2 tubs white frosting, 1 tub chocolate frosting, crushed Oreos, black decorator icing, yellow food coloring, orange food coloring, red food coloring, blue food coloring.
I made a base using a jelly roll pan covered in brown construction paper with clear plastic wrap over it. Then I covered two Thomas the Tank bridge towers with aluminum foil to support the truck body. I used a board cut to size with hole drilled for the bridge supports (also covered in foil) to hold the actual body.
I frosted the cupcakes with chocolate frosting and placed on the jelly roll pan and sprinkled with crushed Oreos.
I cut the 9x13 cake down to 4.5x13.5 and placed that on the support board. I cut a 4.5x4.5 piece for the cab and then angled the one side to resemble a window slant (making top 3x4.5).
I attempted to dye some frosting red. Turns out it takes a lot of red food coloring to actually make red because this was a whole bottle and still looks kind of pink. If I were to do it again, I would just buy red frosting. I covered the entire truck body in red (including board that was showing). I dyed some frosting grey and made the ship shape on each side.
I partially dyed some frosting blue (streaked blue through white frosting so some was blue and some was still white). I frosted some "waves" in the front of the boat on each side. I used black decorator icing (the kind that comes in the premade tubes) for the outlines and the windows. I added orange "flames out of the ship and yellow to the headlights and my sons name.
I frosted the doughnuts with black icing, balled up some aluminum foil to stuff in the holes and secured to cake using toothpicks. I cut 2 of the pretzels to 5 inches for front and back bumper. Cut 5 of the pretzels to 3 inches for missiles and support for back bars. Cut 2 of the pretzels to 4.5 inches for back bars.
My husband drilled holes for candles into the missile pretzels (need to go slow or they break). I inserting the candles into each hole.
I melted the chocolate bark according to package directions and dipped the pretzels in. I put them all on wax paper to dry. For the back bars, I placed the two longer bars parallel with each other and smaller bar between to form an "H". For the missiles, I added a chocolate chip to each of the missiles to act as tip. I cut a couple graham crackers to small triangles and dipped those in chocolate and then attached them to the missiles while chocolate was still wet. When they had all dried, I added orange to the missile tips.
I placed the back bars in the back of the truck and rear of cab (had to touch up red frosting a bit where they were inserted).
I placed the missiles on the top of cab and secured with toothpicks (tried to put them in far enough to not be obvious but left out far enough to keep missiles from rolling off). I placed 2 toothpicks between board and cake in both front and back and tied some thread to the pretzels and looped it around the toothpicks to hold in place.
I finished it off with a number "5" candle in the back. When candles were lit, it looked like fire coming out of missiles.