Heads up! This blog post hasn't been updated in over 2 years. CodePen is an ever changing place, so if this post references features, you're probably better off checking the docs. Get in touch with support if you have further questions.
The Awwwards conference is coming up this February 24-25 in Barcelona, Spain. If you're a code artist, you can win 2 tickets to the conference (hotel included).
You create a Pen and then email them (firstname.lastname@example.org) a link to it. They use the designs in the background of the site for the conference. There is some pretty cool ones there already!
You can also vote for the winners. It's not entirely clear, but presumably the person with the most votes wins.