First I made two cakes in Pampered Chef Batter Bowls (1 qt and 2 qt). You can use a regular size cake mix for the large bowl and Jiffy size or half a regular mix for the small bowl. I actually made 2 batches of my favorite cake recipe (Betty Crocker Best Chocolate Cake).
I would wrap the large bowl with a wet towel, because the cake may need extra time, but the edges will really over cook and dry out. The small cake cooks quickly.
I smeared dark chocolate frosting on for the roads.
Around that I made grass using the Wilton grass/hair decorating tip. Whew, that took a while!
Crushed oreos on the road for where the gopher digs.
Rock candy in various colors for the star bits.
Candy coins, obviously, for the coins.
And I don't really "do" fondant, so I just bought a set of mini-figures for the cake.
Voila! They loved it!