Jacob Harris was lying in that netherworld of consciousness, the fitful intermediary state between sleep and wakefulness, when inspiration struck. Suddenly awake and energized, he shared his idea with his sleepy wife — who predictably didn’t share his ill-timed excitement as she rolled over and groused at him to go back to sleep.

This wouldn’t be a woozy moment of forgotten genius . He didn’t go back to sleep, his mind racing and bouncing like a icosahedron dropped off a table. The seed of what would become his viral success had been planted.

It’s been seven months since his idea — a stamp-based tool kit that helps Dungeons & Dragons players create detailed maps using ink and paper — went from idea to prototype to Kickstarter platinum. The product, Tabletop Stamps , went live on Kick

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