In a large bowl, stir together the white whole wheat flour, all purpose flour, salt, baking soda, baking powder, and cinnamon. In a medium bowl or large mixing cup, whisk together the eggs, honey, brown sugar, coconut oil, and vanilla until well blended. Add all at once to the dry ingredients, stirring by hand just until combined. The mixture may be a little lumpy. Fold in the zucchini and coconut.
Place rack in upper third of oven and preheat the oven to 350°F. Lightly grease a standard 12-cup muffin pan.