We explore data craft as a means to create mementos that integrate data about personal and shared experiences into people’s everyday lives. Digital mementos, e.g., in form of visualizations, aim to support personal and joint reminiscing by leveraging personal data archives. However, their digital nature can complicate value construction and integration with social and everyday practices. We propose to consider data craft—the manual crafting of functional objects that incorporate personal visualizations—as an opportunity to create meaningful physical objects. We suggest that the manual creation and habitual use of these objects adds to their perceived value and authenticity and can spark recollection based on digital traces of personal and shared experiences. We illustrate the concept of data craft through examples and reflect on the resulting objects as keepsakes and gifts that strengthen social relationships.PostprintPeer reviewe