I've had a lot of people want to know how I made the cake, so here it is. The white paper is holding back a bunch of gravel that will fall down when the cake is presented to my son. This is what I used, but feel free to use it as a jumping off point for your own construction creation!
Materials:
Cakes:
2 boxes yellow cake mix
2 boxes dark chocolate cake mix
4 containers chocolate buttercream frosting
12 eggs
oil
yellow food coloring
Decorations:
"quart" sized carton of Whoppers
bag of gummy worms
Oreo cookies
Animal crackers
Bamboo skewers
tin foil
Figures:
Set of CAT construction vehicles
bag of construction figures and signs (I found both of these at KMART)
Stick a couple bamboo skewers in to help it stay. Frost. Cut other bamboo skewers to size and space them out around the cake to create buttresses for your retaining wall. Keep them about 3 whoppers apart. Then take your whoppers and stack them around the bottom of the cake -this is a great way to hide your messy frosting edges! I did 3, then 2, then 3 on most of mine. The first cake has only two rows because it is shorter. Grind up animal crackers, then oreos in a food processor. Apply to cake.
It's okay if you want to drive the toys around on the cake before putting them in their final places! Keep the frosting containers around so you can use the small bits that are left over as an adhesive for the dirt ad gravel on the figures.
Most of all, enjoy and have fun!
Idea for slicing the cake to look like caution tape (will add photo once it's cut open) on the inside came from Here.
If you'd like to check out my other artistic endeavors, you can find me on facebook at GossamerScapes and Gossamer Memories Photography and also at GossamerScapes on Etsy.