Iceberger - Draw an iceberg and see how it will float
InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.
Stickman Builder - Free parametric graphic Stickman Builder, creates fascinating stick figures on the fly.
Storyly - Bring superb stories to your app
Drawy - Learn to draw, use camera to score your drawings
Zuck.js - JavaScript library that lets you add Stories everywhere