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We report on the design process and evaluation of Pen-Pen, which is a design combining a neck-cushion, a mobile app, and a multi-modal feedback loop to help commuters relax and rest during commuting hours. The design process of Pen-Pen includes a series of inquiries, which identified "support for relaxation" and "location based arrival notification" as desires of commuters, and "mindfulness" and feelings of "autonomy" as relevant determinants of commuters' wellbeing. We evaluated Pen-Pen in the field with five commuters, and through an online survey with 68 participants. Our results indicate that using Pen-Pen has the potential to increase feelings of rest and autonomy, and to foster mindfulness through the feedback loop which feeds back spatial audio based on user location and finger touch. Especially commuters who reported to be less mindful and easily stressed anticipate Pen-Pen to be useful for them. CCS CONCEPTS • Human-centered computing → Auditory feedback; Field studies;

Digitalization is changing the nature of tools and materials, which are used in artistic practices in professional and non-professional settings. For example, today it is common that even children express their ideas and explore their creativity by drawing on tablets as digital canvases. While there are many software-based tools, which resemble traditional tools, such as various forms of virtual brushes, erasers, etc. in contrast to traditional materials there is potential in augmenting software-based tools and digital canvases with artificial intelligence. Curious about how it would feel to interact with a digital canvas, which would be in contrast to a traditional canvas dynamic, responsive, and potentially able to continuously adapt to its user's input, we developed a drawing application and conducted a qualitative study with 14 users. In this paper, we describe details of our design process, which lead up to using a k-armed bandit as a simple form of reinforcement learning and a LeapMotion sensor to allow people from all walks of like, old and young to draw on pervasive displays, small and large, positioned near or far.