This is a great tool for placeholder images for wireframing a project.
A while back, a service called Placehold.it was posted to reddit. It received mixed reviews, most of the criticism being that the site owners themselves, or a hacker could replace all your placeholder images with something much less work appropriate. I decided to create my own placeholder image generator, and release the source code. That way, you can host the application. Sure, it could still get hacked and leave you in a sticky situation, but now it’s your site, not another person’s site. I assume most people put more trust in themselves than others.
Here’s a quick example of how it works (default image):
You can view more examples as well as learn how to use it by reading the documentation. The source code is available at the bottom of the documentation, both with a generic version, and one specific to CakePHP.