Heat the oven to 350 degrees and grease a small 6-inch round cake pan.
In a mixing bowl stir together the flour, sugar, baking powder, and pumpkin pie spice.
Add the pumpkin puree, egg, and vegetable oil to the dry mixture and stir until smooth.
Pour the batter into the prepared pan and bake for 25 minutes or until a toothpick comes out clean.
Let the cake cool in the pan for 10 minutes then move it to a rack to finish cooling.
Spread the cream cheese frosting evenly over the cooled cake.
Place the two vanilla wafers side by side near the top to form the owl eyes.
Press two chocolate chips into the center of each wafer to finish the eyes.