Instructional - template & disc for "impossible" challenge

thingiverse

An Unbeatable Brain Teaser That Will Put Your Puzzle Skills To The Test. This Ingenious Challenge Involves Passing A Thin Disc Through An Astonishingly Small Opening. The Design Boasts A Thin Disc And A Precise Template, Which Is Used To Draw A Perfect Square Onto A Sheet Of Paper. From This, A Square Hole Is Carefully Cut Out. Your Mission: Pass The Thin Disc Through The Square Hole Without Causing Any Damage To The Surrounding Paper. The Rules Are Simple Yet Challenging: You Must Keep The Paper Intact At All Costs - No Tearing Or Additional Cutting Is Allowed Beyond Creating The Initial Square Hole. However, Folds Are Encouraged And Often Necessary To Overcome This Puzzle. A Helpful Hint: It's Recommended To Use Sturdy Paper Or Reinforce The Corners Of The Square Hole To Prevent Accidental Tears.