nothing says "easy" like a link that points to another link that points to a form on a page!
This got me going, and we got progressively sillier. The eventual result:
A link that points to another link that points to a page with a PDF form embedded with FlashPaper, which must be digitally photographed, uploaded from the camera, printed out, filled out, and faxed to a fax service that take the fax and emails it. The image in the email is converted back to text and read aloud by a screen reader.
Last night at work, I got a screenshot that the user said was "scanned". The image was sideways, and on first glance appeared to be black and white, although subsequent examination showed color from what was probably .jpg artifacts. It appeared that they had in fact held up a black-and-white scanner to their computer screen, and saved the resulting image as a color .jpg.
I did not think that such a thing could happen outside of fiction.