The sushi, bowl, ginger, wasabi, and chopsticks are made out of fondant. The soy sauce is maple sugar with brown food dye to make it a little darker. I think it looks pretty good. I would love to do another one because I learned so much while doing it--I bet my next one will be even better.
The cake is spice cake with caramel icing. The icing is an old family recipe and is practically heaven on earth: it literally melts in your mouth. It's tricky to make though, and hardens quickly so getting it onto the cake is difficult (hence the slightly rough look). Despite its looks, it turned out GREAT and I'm happy to post it!