Make five little plops of cream cheese on each oval cracker, one at the bottom, two in the middle and two at the top.
Add grape tomato halves to the cream cheese plop on the bottom of the cracker for the reindeer nose, sliced black olives to the middle cream cheese plops for the eyes and broken pretzel pieces to the top cream cheese plops for the antlers.
Or if it is easier for you, simply put the cream cheese on the olive slices, tomato halves, and broken pretzels before putting them on the crackers.