Rolled fondant icing lends itself well to intricate designs, like deer antlers, for a cake or other dessert decorations. This malleable sugar paste has a smooth finish, dries hard and can be colored any way you like, whether you're making a natural-looking deer with brown antlers or you want something more whimsical. For flat, small deer antlers, you can cut them out freehand, allow them to dry, then put them on the cake. If you want larger antlers that will stand above the cake, you'll need to use some edible support in the form of pretzels.
Put on disposable food-grade gloves and lay out a sheet of plastic wrap on a flat surface. Dust the plastic wrap with a light coating of powdered sugar.
Place a block of rolled fondant onto the powdered sugar and add 5 drops of brown food coloring or cake coloring to the middle of the fondant block.
Work the coloring into the fondant by kneading the fondant with your gloved hands until the coloring is evenly distributed throughout the fondant. Add more food coloring if you wish to darken the antlers.
Lightly coat a rolling pin with powdered sugar and roll the colored fondant into a 1/16-inch-thick rectangle.
Cut strips from the fondant 2 inches wide and as long as you want the antlers to measure.
Break each pretzel into antler shapes with a central stalk and one or two branches extending from it.
Wrap the fondant strips around each of the pretzels to completely cover, pressing against the pretzel to adhere, leaving 1 inch of pretzel at the base to insert into the cake.
Insert the uncovered portion of the pretzels into the cake at the top of the deer head to set the antlers.