Combine pink lemonade jelly crystals with 1 cup of boiling water and stir in a jug until jelly crystals dissolve. Cool until room temperature. Stir in half the lemonade. Divide evenly among 8 cups. Refrigerate until jelly sets.
Repeat with lime jelly and remaining lemonade. Divide evenly among 8 cups over pink lemonade. refrigerate until jelly sets.
Beat cream and a drop of food colouring with electric mixer until firm peaks form. Serve over all the set jelly and add a strawberry and jelly crystals to every cup.