Take a one-mile cube of adamantium. Rig it with anti-magic generators and carve a Juggernaut-shaped tube in it that goes about halfway through. Get Wolverine to the end of the hole (I suggest leaving a six-pack of beer there). Now take a two-foot-thick Juggernaut-shaped sheet of adamantium and use it to plug the hole. Keep Wolverine distracted in the meantime (more beer). Give Juggernaut himself a good head start and have him shove the sheet all the way down the hole, theoretically flattening Wolverine into a thin paste adamantium skeleton be damned.
Since we all know Wolverine is essentially invincible, how does the writer get him out of this particular hole?