Easy way to put a "Digger" in one blog post

So I was looking for a way to do it and I found ways to edit your template, but it goes in every post.

Then I found one that would have worked if I could find a place to upload .html files. I could not, well at least for free.

Then I found another post that had to do with editing the template yet again.

I used all those and made one of my own, no uploading, no editing you template.

Here is the code to put in you post:

DO NOT INCLUDE HTTP:// IN THE LINK YOU USED
Here is a live example of one: