IF (and BIG IF) Dubynk keeps up his good play of late, I wonder if there's a fit with Washington.
Both Samsonov and Vanacek are eligible to be picked in the expansion draft, and I don't know if the Caps would want to bank on them as their duo if they make a playoff run this year (RIP Hank). Dubynk (again if he's playing well) solves both problems for them since he's a UFA, and the Sharks get a younger goalie who can at the very least play in the NHL. Might also be cheaper for Washington to trade Vanacek now than pay Seattle to not pick him (on top of Oshie who they might want to protect).
Sharks would likely have to add, but I'd happily throw in Marleau and/or Nieto if the Caps need depth/PK forward help (I don't really know what they need). Sharks would probably add a pick or prospect or something too.