Cut two slits into the top of each donut so that half a pecan can fit into each hole.
In a medium bowl, melt white chocolate by microwaving it at 30-second intervals, mixing after each interval. Once melted, mix in matcha powder.
Dip the bottom of the chopped pecan into the melted matcha white chocolate and stick it into the cut part of the donut. Allow the white chocolate to set.
Dunk the tops of the donuts into the melted matcha white chocolate. Once the chocolate sets, draw on the eyes, nose, mouth, and blush with edible food markers.