In a bowl whisk together yogurt, 1/3 cup orange juice concentrate, and maple syrup. The maple syrup is optional. If you like sweet over tart add it, if you are just fine with the flavor then you can leave it out. Fill Dixie cups with yogurt mixture spoon a teaspoon of straight up orange juice concentrate on top. Place popsicle sticks in yogurt and swirl orange juice concentrate around. Leave stick in the middle, and place in freezer for 24 hours or until frozen solid. Peel paper cups off creamsicles and enjoy!