The four main Ghostbusters done movie-style, with proton packs and neutrona blasters (plus they could each come with a separate accessory: ghost trap, PKE meter, those goggles, and Slimer).
Fight Club 2-pack with Tyler Durden and The Narrator.
Pulp Fiction 2-pack with Vincent Vega and Jules Winfield.
The Rocketeer (with removable helmet, of course).
Reuben Flagg from American Flagg!
Hunter Rose (with fork and mask straps, maybe a removable mask) and Grendel-Prime.
Rex Libris, the best comic you aren't reading.