Free stencil collections for creating mockups using the Pencil UI prototyping tool.
Created by @nathanielnw
High-fidelity components based on the Bootstrap UI framework.
A collection of components for designing Android apps that conform to Google's Material Design guidelines.
All 800+ of Google's Material Design Icons as a Pencil stencil collection.
Twitter's emoji as a Pencil stencil collection, ready to drag-and-drop into your mockups.