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The popsicle stick objects have an option that puts little hirigana on it. After painstakingly using Wikipedia to transcribe the symbols, I got 'atari'.
Turns out that this is actually a cultural 'prize' system over in Japan. If your stick has this on it (atari actually meaning 'to hit the target' - probably something akin to 'bullseye!' in english) you get another free treat.
Just make sure not to lose your bathing suit while swimming, though.