Watermelon: The characters refer to the converted warships or the "Phoenixes" Shouhou (Tsurugizaki), Zuihou (Takazaki), Ryuuhou (Taigei), Chitose and Chiyoda.
Voodoo doll: The converted merchant ships or the "Hawks" Shin'you (German liner Scharnhorst), Kaiyou (Argentina maru), Hiyou (Izumo maru), Jun'you (Kashihara maru), Taiyou (Kasuga maru), Un'you (Yawata maru) and Chuuyou (Nitta maru).
Bananas: Houshou and Ryuujou, the two reversed name order carriers.
Ice cream: The named Unryuu-class and their hull numbers: Unryuu, Amagi, Katsuragi, Kasagi, Aso, Ikoma and Kurama.
Melon: The final 3: Taihou, Shinano and the unfinished Ibuki.
The Red and Blue apples(?) are supposed to be Akagi and Kaga while the Orange is Hiryuu?
The numbers in the bottom of the glass are a mystery to me.