In honor of Star Wars Day, which was on May the Fourth last week, Youtuber The Beardless Man built a Star Wars bike/skate helmet based on a character that is so far pretty much underrepresented in the world of Star Wars helmets: K-2SO. Here’s a video tutorial showing you how he built the whole thing.
https://www.youtube.com/watch?v=jh1xvrHnfUQ