Cowboy themed cakes are very popular. Check out Part 1 of the tutorial on how to make a cowboy hat cake.
How to Make a Cowboy Hat Cake Topper - Rose Bakes
How to Make a Cowboy Hat Cake 18
How to Make a Cowboy Hat Cake 05
How to Make Cowboy Hat Cupcake Toppers Collage (Chocolate Fondant Rose Tutorial)
5 Creative Birthday Cakes: Cowboy Cool (via FamilyFun magazine)