These small boxes inside a bigger box : r/oddlysatisfying
Corrugated Box Printed Inside and Outside – Blog of Shanghai DE Printed Box
Amazon.com: Give the Gift of Frustration: Boxes in a Box Prank. Includes 3 Sets of 6 Nesting Cartons (2-12 Inch). Funny Practical or Novelty Joke. Great Christmas Gag, Birthday Present or Stocking