Huang was apprehended after a Walmart self-checkout machine rejected a $100 bill that turned out to be an extraordinarily detailed origami replica folded from a single sheet of green cardstock. An investigation revealed she had successfully passed forty-six similar bills at self-checkout machines across seven Walmart locations over a three-month period, purchasing an estimated $4,700 in groceries. Loss prevention described the craftsmanship as ‘genuinely museum-quality’ and noted that the bills included a folded-in watermark. Huang declined to reveal her technique, calling it ‘proprietary.’