A Hemingroni? I would lose the grapefruit juice, but that's just me. EDIT: I totally misread the intent of the thread. My new suggestion is NecronoDaiquiri. But I like Dinny's suggestion.
Japanese Cobbler
3 ounce sake
1 ounce fresh lemon juice
½ ounce orange curaçao
¾ ounce simple syrup
Shake all ingredients and strain into a large goblet, top with sweet or dry soda to taste. Garnish with a sprig of mint and fresh fruit.
Courtesy of Dale DeGroff