I acquired a puzzle that had one piece missing. I scanned the picture on the puzzle box and enlarged the area of the missing piece, printed it out and glued it to cardboard (thickness of puzzle), cut to shape of missing piece.
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I love getting quality toys for my granddaughter on Freecycle. I got a magnetic hide and seek puzzle that I know she will enjoy. I saw that this puzzle was missing two pieces. Unfortunately, Melissa and Doug does not sell replacement pieces. I was determined to save this puzzle from the landfill, and was pleased with the results.