PRchive: Grab all the media from your PRs
Run npm install prchive -g
, then prchive
to start. Point PRchive at a project you have access to, and it'll grab all linked files and images from the project's pull requests and save them in a dir that looks like this:

The leading number before each filename is the PR number. PRchive also include a list of the original URLs, an HTML with images src-ing those URLs, and another page of images pointing to the local copies.
Development
Run npm run prepublish && node lib/test.js
to test the script while in development. Create a file called .config.json
in the root to save on typing time, and fill it with your credentials like this:
{
"username" : "averyvery",
"password" : "password",
"repo" : "vigetlabs/prchive"
}