Make porch and chimney. Tint 4 oz. white fondant gray. Knead in 1/8 teaspoon Gum-Tex. Use 20 in. fondant roller with orange guide rings to roll out fondant 1/8 in. thick. Use patterns and fondant trimmer to cut two side porch panels and two front porch panels, front and back chimney panels and two side chimney panels, reversing panel for second cut.
Use small opening of tip 1A and cut 60 shapes. Use damp brush to attach circles to chimney, beginning at the bottom and overlapping pieces. Let dry 48 hours on cornstarch-dusted board.