Here is another one (this one we talked about) that you can find on your shelves for the quick flip. Steve Rogers Captain America #1, the controversial new book from Nick Spenser, is selling for multiples of cover price.
While the book has cooled off some, a NM copy sold for $52, the book is still fetching $15-19. Not bad for a $4.99 book.
The FCBD issue is selling for $5 plus shipping, which is not bad for the unstamped copies.
The variants are doing well also. The 1:50 variant is going for $100. The Steranko Variant is selling for a steady $22-25. I just saw a ton of these today. Keep an eye out for copies for the potential flip.