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3D pop-up jigsaws have sections that stand up (e.g., castles with towers)—what’s the hardest pop-up section you assembled (fragile tabs, or complex folds), and how did you make sure it stood straight? Did you ever gasp when the pop-up section stood up fully, and what’s the most surprising pop-up moment you had?
Posted : September 21, 2025 7:02 pm