Choo Choo is hilarious. Though I might have gone with John Henry for a Railway Rifle ...
Judgment Day is awesomely menacing. Good name for a Preacher's weapon.
I'll copy the ones I posted in the other thread, plus a few more I remembered
The Last Full MeasureSCAR-L used by Victoria
The Full MeasureMissile Launcher used by Victoria
Karasu (Japanese for 'Crow')
Katana used by Tsuruhime in FO4
MaledictionPeresphone's sword in Skyrim, Oblivion, FO3, FONV, and FO4.
Takizakura (Japanese for 'Waterfall of Cherry Blossoms')
Katana used by Oda Hidetaka in FO3 and FONV.
Kusanagi-no-Tsurugi (Japanese for 'Grass-Cutting Sword')
Katana used by Tomoe Gozen in FO3.