I was fortunate to snag (with permission) a marvel branded comic rack from a 7-11 back in the early 90s but had to leave it with my uncle because I was in college.
Many years later (this year) I finally got it from him and here it is! (Its at the bottom of my contact page because I'm lazy...clicking the link won't open your email or anything)
Contact - SUPERUNDERDOGGIE.COM
Obviously it doesn't hold a candle to the ones above but its all I got!
P.S. The other two graphics are Hulk and Wolverine.