In a small saucepan, combine sugar and water and bring to a boil. Remove from heat and cool. Combine fruit juices and mint leaves. Pour cooled sugar syrup over juice mixture. Let stand for 1-2 hours. Strain and refrigerate.
When ready to serve, mix 1 part Texas Sunshine to 2 parts water or club soda. Pour over crushed ice and garnish with fruit or fresh mint leaves.