With a lack of Paypal and legal paper, I was unable to come across bulk cases. So a simple solution, boxed genesis titles. When an image (Like NES titles) are printed on 8 x 11 in preview with "fit to whole page" unchecked, I managed to use an 8 x 11 sheet to cover the entire genesis cover. I'll post pics soon. 
Let's dive into this Lotusoftheleaf.
HOW TO GET 8.5 x 11 COVERS for NES and SNES Titles Using Genesis Cases
This image of course, a disregarded EA case, I believe a bad case of Charles Barkley Shit up and Jam. Regardless, it is regular, standard size. (very close to that of the sonic titles, and of ecco the dolphin, NOT the size of the much larger cases like john madden football, etc.

As you can see, NES titles fit beautifully in here, with room for the manuals, although I'm figuring out still how to place them in... perhaps a plastic card sleeve of some sort...

I printed my image from the university's library for 50 cents a color copy, but is crisp and has a great image. Funny enough, the size is 8.5 x 11". Now I just opened the downloaded image on windows (there) into preview, and set paper to letter (8.5 x 11), and unchecked the box that makes the image fit to window. The result was a copy the size I show. Of course, the reason it looks so wanky is the fact that it was already cut out and put into the case. I put it on an 8.5 x 11 for show.

The 8.5 x 11 image cut out and placed inside the genesis case. The distance from the edges of the case to the image are extremely small, perhaps a mini headphone jack's distance from each side.... like 2 mm? Guessing, but regardless, the spine fits beautifully and makes a beautiful case

Yes, I realize that Urban Champion doesn't go with Mike Tyson's, but it's all I had laying around on campus.
Hope this helps you out!