I Have Two Months To Come Up With A Cake

The problem with baking really impressive birthday cakes is that there's an expectation I'll keep surpassing my last effort.

I'm wondering what it would take to bake a three dimensional wooden-looking horse (graham crackers, maybe?), stick it on a platform with wheels, and make a walled city from more graham crackers, more cake, and a ton of sugar paste? Danny is still pretty insistent about wanting Chapman's Homer for his birthday, so I thought a themed party might be nice.

And you people thought I lost it when I baked the HMS Victory. Oh no, that was just practise.