Fallout Funko POP! Games Mystery ? Vinyl Figure

So you've been collecting Funko Pop! vinyl figures for a while, right? We're sure your collection is awesome, but how about adding a little bit of mystery to it? Choices include Fallout's Toughness Vault Boy, Medic Vault Boy and Charisma Vault Boy. Plus, an ultra-rare chase figure. What is it? Sorry, it's a surprise! And which one will you get? That's completely random.