I wanted my Agent Carter figure to do more than simply stand there (and fall over when the shelf was even barely touched) so I took Elektra (Defenders tv series) body, added Jessica Jones (Defenders tv series) arms and jacket, along with Misty Knight's holster. To get the You're Welcome, Cordelia figure's head to fit onto the Marvel Legends body, I shaved down the ML neck ball as much as I could. The head fits well, but won't stay on without adding some glue. I may try adding a drop of nail polish to add some tension.
I alternate between a .45 that comes with most knockoff Black Widow figures, and a small flare gun from the 4" Alan Grant Jurassic Park Legacy figure - that pistol resembles a snub nosed .38 rather nicely. And of course, I gave her Cap's shield.
I noticed that Elektra's torso design, with added matching arms, looked similar to the 1940s Red Room uniform seen on Agent Carter. I suppose Peggy could go undercover, trying to ferret out information on the nefarious Red Room, all the while without being caught by Dottie Underwood or anyone else in Hydra!
A friend saw this and mentioned that her attire has a Howling Commandos feel to it. I like that. Perhaps Peggy fought with the Howling Commandos on various missions along with helping the SSR, creating SHIELD, after Cap "died".