This cake design is a great option to consider for a groom's cake. Instead of having it at the wedding, you can have the option of serving it at the rehearsal dinner. Otherwise, it is small and will not compete with the wedding cake.
When trying to decide what design you want, consider the following...
What best represents the event or individual
Something that has meaning or symbolizes something unique to the individual
Pull your ideas and resources together and develop a concept.
If all else fails; use Pintrest!!!