Print with standard PLA settings + support.
Place spinner on smooth surface, spin gently, the pointer will indicate your answer.
The pointer file could be printed in two colours. Alternatively you could paint the question mark: artists' acrylic paint works well.
spinner selection.pdf has three cards for the spinner: suggest print on thin card. The custom card is there for your own set of ‘answers’ or you can make your own card(s).
Download spinner selection.pdf in the documentation section for a pdf with all three card designs.