Secret Glow Letters for Treasure Hunt

These look like blank discs but have a secret letter or number hidden inside when printed out of glow filament and charged up with a light. We are using it for a scavenger hunt for our 9-year old niece. (We make her solve puzzle style scavenger hunt to locate her christmas/birthday presents each year.) I could see this being used as part of an escape room clue or magic trick or part of an elaborate engagement proposal.

 

The printer plate (A1 mini) contains the whole alphabet and 1-9 numbers plus one blank disc. To print your chosen letters just select/unselect the ones that you want for your clue.

 

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