I stopped into Publix today and asked about their special order cakes. Prices were not available, as so much seems to depend upon the end product. I did notice that a 1/4 sheet cake that is already decorated (with room for writing) cost $19.99.
So, here's the deal:
Cake sizes: 1/4 sheet (serves 20)
1/2 sheet (serves 40)
3/4 sheet (serves 60)
full sheet ( serves 80)
8" (serves 10)
7" (serves 8)
Cake Flavor: Chocolate
Half and Half
Filling: Vanilla Custard
You can have other things (toys, ect.) put on the cake, and of course have greetings, wishes, ect. written on too.
Personalized Images are $8 additional, and you must choose at least the 1/4 sheet cake for that option.
The do ice cream cakes too.
They need roughly 4 days to 1 week for special orders (especially if choosing the carrot or red velvet cake).
I don't know what encompasses "other!"
These cakes are in addition to the wedding cakes that they also do, but I'm sure if you wanted one of these for a wedding it would be fine (simple, but fine).
The sheet cakes are two layer, and very good. I've had them before for special events. We are very partial to chocolate with raspberry filling and chocolate whipped cream topping. However, vanilla with lemon filling and buttercream frosting sounds quite nice too, as does anything with cannoli filling!
Publix does have a round sugar free cake (two sizes). It's either vanilla or chocolate, and quite nice! They will not write on it though, as the icing for writing is not sugar free.
So, there you go!
Side note, do NOT use the Publix at Orange Lake (west 192) if ordering the cake. (Or anything really). This used to be my favorite "near WDW" Publix, but after the experience I had there today, I'll not go in again, nor will I recommend them to anyone. The one further west (and of course the Premium Outlet Publix) are the ones closest to Disney that I recommend.