All those creative error pages make me think that it might be a great "dear team, maybe you fancy hacking some funny or exciting non-related webdesign stuff in

All those creative error pages make me think that it might be a great "dear team, maybe you fancy hacking some funny or exciting non-related webdesign stuff in your free time. If you create something nice and want to, we can use it as our error page" motivation to have your programmers space out and hack as they like while still contributing to the project.