Quick, Draw! Is a site that helps train a neural network how to recognize doodles. To participate, you'll have to doodle different items in a short amount of time. The neural network will try to guess what you're drawing. Some of the drawings I made were recognized in just a few seconds, such as "basketball". When it came to trickier drawings, like "scorpion", the neural network wasn't able to interpret my doodle. Here's a fun gallery of other people's drawings that they've added to the site.