(Updated for 2023, now with US Letter size files in addition to A4 files) Father Christmas has lost six of his presents inside this flexagon. The first two are easy to find but can you uncover the other four? By folding and unfolding the flexagon, perhaps you can find them for him Print and make … Continue reading CS4FN Advent Calendar – bonus material: HexaFestiveFlexagons to make and colour in