If you use Photobucket and have your account set to public, your images are, by default set to allow anyone to print them for any purpose, here is an example of how it is done.

If You wish to contact Photobucket about these practices, you can do so at this link: photobucket.com/contact

You can also reach Qoop, the Photobucket partners with, by visiting this link: qoop.com/about/supportForm.php?loc=21&request=general (You first have to solve the CAPTCHA before going to the form)