When I saw these cakes in the food cake contest, I had to have a FIESTA party for my son's 2nd birthday party just so I could make them. To make them look more real I added texture to the shell. The tedious work paid off. They were a hit! Everyone thought they were actually tacos, not realizing it was the cake. I made a separate one for a plate with a candle in it for the birhtday boy. Thank you to all those who posted theirs and gave instructions and tips!!