To make the corn cob roll out yellow fondant and roll it out into long coils about 1/4 inch wide and about 4 in long. Then use a knife and press lines all the way up to make rows of corn. To assemble first pipp a flat swirl of buttercream on to the cupcake and smooth with Viva towel. Then starting in the middle I lay the strips of corn on to the buttercream and trim each side down. Then add a topping of a fondant "butter" square and some "salt and pepper" sanding sugar to finish them off.