Of course they DON'T exist. Just look how incredibly Photshopped those images are. First, look how blocky the "Rolling Thunder" title it. It's taken directly from the title screen itself! Also notice how the box damage and dirtiness only affects the areas outside of the artwork. Next, look at the HuCard itself. Look at how sloppily the game title was placed on there. You can see the red smears easily. For Robocop, look how clean and sharp the "artwork" is and how blurry and crappy the rest of the box is. For the HuCard, you can see the same crap around the title as the Rolling Thunder card.
People need to learn that if you're gonna do a fake, you must do it better.