Preheat your oven to 350 degrees F and lightly grease 4 mini loaf pans for later.Take out a large bowl, and beat together your eggs, vanilla, and sugar. Fold in the zucchini here. Now you want to beat the flour, salt, baking powder, baking soda, and cinnamon together. Now gently fold in the blueberries before transferring to the prepared mini pans from earlier.Bake these mini loaves for 50 minutes into the preheated oven, or until a knife can be inserted in the center of the loaf, and can come out clean. Let these loaves cool for about 20 minutes while still in the pans. Then you can take them out and place onto wire racks to allow them too cool.