Romo Doodle
I built Romo Doodle in one day as my interview for an internship at Romotive (I originally applied for an electrical engineering internship, it's kind of a long story). Since then, it's been integrated into the Romo app, and I've open sourced it. Here's a video of me awkwardly demoing the app a couple of days after I built it, and here's another more polished video of it in action.
You can check it out here.
Built with: Java and Objective-C