GFA: Gunbrella
Take a gun, shove it into an umbrella, and according to spy logic, you have the ultimate stylish weapon. Gunbrella takes that name, shoves it into a noir setting, and gives exactly what is promised: A umbrella containing a gun. As a bonus to this 2D platformer, it also makes the eponymous tool a highly capable movement option that is excellent to control for Mary-Poppins-Style use in combat.