Cut watermelon into bite-sized flower shapes or cubes using a cookie cutter or knife.
Slice the pear thinly or cut into small bite-sized pieces.
Halve the grapes and wash all fruits thoroughly.
In a large bowl, combine all the fruits.
Pour in the Korean milk soda and lemon-lime soda.
Add a generous amount of ice cubes and mix gently.
Serve chilled, garnished with edible flower petals or mint if desired.