Look for seasonal fruit, which will have the best flavor while keeping costs down. Thawed frozen fruit can be substituted for fresh fruit. The honey can be replaced with your preferred sweetener. If using sugar, I recommend making a simple syrup to better dissolve in the agua fresca. To do this, combine a cup of water and a cup of sugar in a small pot, stirring to dissolve. Bring to a boil and then turn off the heat. Let cool completely before using and store any leftover syrup in a sealed jar.