I'm too late to help you out, but wanted to share an experience from my son's second birthday, which was at the end of January.
I made pizza dough before hand and froze it (I do this frequently anyway). The day of the party, I defrosted and shaped the dough and then grouped the guests into teams of four. Each team made their own pizza from dozens of toppings I had placed on the dining room table. We're kind of an all-natural-foods family, so I'd prepared lots of organic veggies and home-made sauce, as well as some more main-stream things like pepperoni just in case we had a fussy guest. Oh, and lots and lots of cheese!
Once the pizzas were assembled, I sent everyone outside to ice-skate (we made a little rink out of some left-over lumber and a $25 tarp) and I baked the pizzas. It was a huge hit...both kids and adults really enjoyed making their dinner, some even got artistic and made faces.
I added a huge green salad, a pasta and bean salad and 'fizzy drinks' (a little organic juice with lots of selzer water). We grown-ups had wine and cocktails.
Dessert was a banana bread recipe made with a little honey instead of sugar and topped with a cream cheese glaze sweetened with grape juice concentrate. I just made a double recipe and baked it in a bundt pan and no one connected the 'cake' with banana bread until I was asked for the recipe.
Just had to share...I was pleased with how well it all went and how easy it was.....and we didn't compromise our no-sugar, healthy food philosophy.