While it sells like heated cakes, The Sims probably isn't high on too many of your playlists. Know what can fix that, though? Making the whole thing look like Fallout 3.
Which is exactly what you can do with these in-game tilesets and objects, some ripped from Fallout itself, others hand-made, allowing you to recreate everything from Fallout's fence pailings and phone booths to some crummy post-apocalyptic ladies fashion.
Fallout Textures, Objects [Mod the Sims]
Alpha and Omega [Garden of Shadows, thanks Celes!]