It's possible to download the video from atomfilm, but you'll need software like WM Recorder to save the video stream as something more usuable.

edit: previous link removed. Why not Watch Pink Five at atomfilms.com
and/or Watch Pink Five Strikes Back at atomfilms and earn the filmakers some royalties instead.

And I have to say thanks for including Pink Five on your extras disks Rowman, it was after watching your easter egg that I sought out the sequel. I think they're both great and can't wait to see Return of Pink Five, whenever they finish it - love the salacious crumb 'i want to go to the toilet' scene in the trailer. Now if only there were DVD quality versions available...