My husband was recently looking at pizzas in various shapes on New Years Eve. He challenged me and my daughter to make one for 2012. Challenge Accepted! I used my usual pizza dough (but doubled it) let it rise and then formed the numbers 2012 out of the dough proceeded to top them and bake as normal. I think it turned out rather well.
My pizza dough (link) This is my pepperoni Calzone recipe but use the dough recipe for pizza dough.
Toppings: crushed whole tomatoes, pepperoni, cheese
Bake 375 for 20-25 minutes or until golden brown. I treated it as I would a square pizza cutting them in slices. The dough was rather thick, but it worked and tasted well for the occasion.
Happy New Year!