I recently made this super pink and girly princess palace cake.
It was fully iced and piped with smooth buttercream. The topper (palace) and side decorations (crown and wands) where made out of fondant.
For the piping, I used a small open star nozzle.
To make the standing 2D palace, the sugarpaste was mixed with CMC and rolled pretty thick (around 5 mm). That thickness is important to get a more sturdy topper and to be able to insert a skewer in its center to attach the topper securely into the cake. The skewer was inserted just half the way through the topper and when the central piece was still workable (not dry).
The castle and the turrets were made separately (same thickness) and then sticked together with edible glue when dry.
Just before placing the finished palace, I cut the skewer to make it shorter and insert it nicely inside the cake.
Hope you liked it!
See you soon,