Paper-folders rejoice: Here is a complete origami kit in a calendar, with a year’s worth of entertainment for experts and newbies alike. Fold a stand-up heart in 14 swift folds, a sitting dog in 12, and a paper-petaled lily in only 6. Each day features easy-to-follow, step-by-step instructions, and a separate origami “key†offers helpful hints and base folds. The square pages double as folding paper and are printed with bold patterns and lively graphics.