There are custom models too, but lookout for the Slightly-domesticated Molerats in Megaton. ALL the weapons may be found it the "megaton common house"

Quite a few are heaps overpowered to warn you.

Its in .rar so please get WinRaR if you don't have it already.

The weapons are:
Loud&Painless
Artillery strike pistol (does a single point of damage itself, but calls an artillery strike each shot)
Chaos Emerald green (some reason theres duplicates, CUSTOM MODEL)
Chinese officer DICER (DON'T USE)
Dart gun glowingone (Seems to get people on your side when fighting)
Daddy's hilt (forgot if it works, but its the Big Daddy's drill hilt)
Dragoon (Don't work)
Dragoon Tailfins (Kirby Air ride Star in your hands as a slasher's tool)
Potnky's power 1 (not as great as 2)
Potnky's power 2 (Hunting rifle that makes people burst into flames)
Laser Cannon (a powerful laser cannon. CUSTOM MODEL)
Wrench (Looks like the one from System Shock 2, CUSTOM MODEL)
Minigun over 100 (Use at own risk of lagging out!)
Minigun W00t (Very laggy again, shoots HEAPS of Miss laucher projectiles per second)
Barrelled Minigun (Very ugly back to it... really, it looks like a glob of snot!)
Missle Barrage (Ths is one shoots a lot of Missles at once)
Missle Gattler (Stuffed up the shooting mechanism)
Missling the point (Gattler and Barrage Put together)
Powerfistgree (It is a powerfist that causes an artillery strike on any enemies)
Rail way Automatic (an automatic and Slightly faster shooting Railway Rifle)
Baseball launcher (Not quite a baseball, but its funny)
Gumball Launcher (Hilarious if you get a strike to a limb)
Ripperwipper (Poisonous and overpowered Ripper)
Miss barrage (nearly the same as Missle barrage)
Miss gattler (nearly the same as Missle gattler)
Missing the point (Nearly the same as Missling the point)

All for now, rage, complain, comment, or ROFL all you want.