L13 and P12 are fixing the walls of the Little House on the Prairie with icing. You can see a blob of icing on the inside of the house which is my attempt at reinforcement as I picked up that piece while it was still warm and it cracked a little.
H10 is lining the third wall of the pentagonal lighthouse with icing before attaching it to the walls A11 is holding in place. The construction phase finished yesterday and the houses are sitting on our kitchen table waiting for the last of the decorating to happen tomorrow.