Let me start by saying that, while it's non-zero, the chances of Felix Hernandez being traded this winter are pretty small.
Felix has stated many times that he loves Seattle. He has a no-trade clause that we know includes the Yankees. We don't know the other teams, but the team that may be the most willing to give up a huge package is probably out of the running.
Mariners general manager Jack Zduriencik has also stated that he has no interest in trading the King. While that may be because he can't due to the contract and ownership's wishes, he still said it. This is a front office that traded for Cliff Lee without a soul knowing about it until it was done. They're tight-lipped, and when they do say something, you can generally take it to the bank.
We also have seen one offer that the Mariners turned down. A couple summers ago, they didn't feel Adrian Gonzalez, Clay Buchholz and their choice of a few more Red Sox prospects were enough. That would have been a pretty impressive haul, so to turn that down lets you know something.
This is baseball, though. It's a weird game, and you never know what sort of surprise you'll see. So here are 10 trade packages that could pique their interest.