I know I was putting way to much thought into this because a 4 year old doesn't care what the cake looks like...you have them at cake. I just wanted to put a little extra effort into this "project" and make it look similar to the one in the book. Lucky for me we actually own the book so I looked at the picture...
Picture from the book (I can't get it to rotate)
When I saw the picture I thought it was more complicated then I remembered it to be I thought it was more like a regular chocolate layer cake. This looked like something with moose and fudge and something fluffy...too much for little kids. I knew simple was better for the kids and decided to make chocolate cake (KAF Devil's Food) with a 7 minute frosting on top. I bought chocolate sprinkles but didn't end up using them because I had to cut off some of the cake to put it into a disposable pan. I created the crumbs from that on top and them put a cherry on each slice...
I thought it came out great and even the teachers commented to me that it looks like the one from the book...Mission accomplished!