From the white cane to the smartphone, technology has been an efective tool for broadening blind and low vision participation in a sighted world. In the face of this increased participation, individuals with visual impairments remain on the periphery of most sight-frst activities. In this paper, we describe a multi-month public-facing co-design engagement with an organization that supports blind and low vision outrigger paddling. Using a mixed-ability design team, we developed an inexpensive cooperative outrigger paddling system, called CoOP, that shares control between sighted and visually impaired paddlers. The results suggest that public design, a DIY (do-it-yourself) stance, and attentiveness to shared physical experiences, represent key strategies for creating assistive technologies that support shared experiences. CCS Concepts: • Human-centered computing → Accessibility theory, concepts and paradigms; Empirical studies in accessibility; Accessibility design and evaluation methods; Accessibility technologies.