For the past two years, I've been able to make cakes for our school's annual Fall Festival. It helps raise money for the senior class. Cake walks are a lot of fun to participate in. Everyone walks around on numbered squares taped to the floor while music is playing. When the music stops, the moderator picks a number out of the hat and whoever has landed on that number gets to choose a cake off the table.
The cake on top says "happy harvest", spelled out with Necco wafers. I used alphabet stamps and gel food coloring to stamp out the words. As I let that dry, I placed more wafers all around the sides of the cake. The second cake was made by first placing candied nuts all around the sides of the cake, then placing fake flowers on the top. I bought disposable cake carriers at my local grocery store for about a dollar. Hope this gives you a couple simple cake decorating ideas for you to use at the next cake walk, birthday party or get-together.