This chapter explores how pin-array displays empower visually impaired users to create, explore, and collaboratively refine tactile graphics, bridging non-visual and visual design workflows. It details optimized tactile presentation techniques, including semantic zoom (superior to midpoint zoom), panning with tactile scrollbars, and 12 validated texture patterns for paths/regions. Critically, dynamic pin actuation enables tactile animations for conveying motion (e.g., planetary orbits) and interactive experiences (e.g., games). The open-source Tangram system integrates pin-arrays with LibreOffice DRAW, enabling real-time co-creation: Blind users draw via gestures, digitizer pens, or object palettes while receiving continuous tactile feedback, and sighted collaborators refine graphics using specialized toolbars. This synergy fosters collaborative quality assurance and creates new roles in tactile graphic production. Underpinning these applications, the BrailleIO framework provides hardware-agnostic middleware—abstracting diverse pin-array devices (e.g., HyperBraille, Tactile2D)—to render SVG/pixel graphics as tactile output with audio descriptions. Evaluations confirm Tangram’s effectiveness, with blind users independently producing complex graphics (e.g., sailboats). By enabling bi-directional graphic creation and sharing, these tools advance educational/professional inclusion and democratize access to graphical information.