What are some advanced cake piping techniques that can be used to create intricate designs and decorations?

Some advanced cake piping techniques include using a variety of piping tips to create intricate designs such as rosettes, ruffles, lace patterns, and intricate borders. Other techniques include brush embroidery, royal icing extensions, and creating 3D shapes with piped buttercream. These techniques require practice and skill to master but can result in stunning and detailed cake decorations.