On Zend's DevZone site there's a new post about the Call for Creativity for this year's ZendCon PHP conference:

If you, or someone you know with connections to the developer community at large, have something to show, we would love to hear so we can showcase at this year’s ZendCon. We are looking for music, digital artwork or video media submissions (including fun videos) which will be played or displayed at various places around the conference, with attribution, of course. Physical media submissions are also welcome though we will be limiting that to local artists.

They include some of the guidelines for submitting your work (with an obvious preference on digital media) including the formatting and what sort of topics it should be relevant to. Prizes will be offered to the winners - a spotlight in a ZendCon newsletter and press releases as well as exposure via each category on Zend's social media properties.

If you'd like to send in your submission, you can use the form on this page and link to the media you've created.