In a small mixing bowl add your vanilla frosting along with a 3-4 drops of brown food coloring. Mix until it's completely combine and adjust depending on how dark you'd like your frosting.
Take your Graham cracker halves and spread brown icing all over the top of the graham cracker.
Then take two pretzel halves and place one in each top corner of graham cracker for the antlers
Next, place two candy eyeball sprinkles side by side in center of cracker.
Then place a brown or red mini M&M under the eyes to complete your reindeer.