EXAMPLE:

The Deuce Revver
Model: http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=74772074
"Revved up like a Chevy to the levee and it's gone to far."

(!) Rev up audio is randomly selected, looping chorus from one of the following songs

• American Pie, by Don McLean
  
• Rich Girl, by Hall and Oats
  
• Blinded by the Light, by Manfred Mann

(+) Invulnerable while spun up
(-) -100% damage dealt

The Extremely Loud Clap
Heavy Melee, normal fists model

(!) Attacking at any time will stun ALL players in a large radius for 1/2 of a second. (Equal to Sentry range)
(-) -100% damage dealt
(-) You are affected as well

Very Realistic Rocketlauncher

+ 800% Base damage
+ 300% Damage against buildings
+ 250% Increased blast radius
+ 100% Faster projectile speed
-/+ Can blow up the objective, thus causing the game to end in a tie
- 75% Smaller clip size
- 100% Slower reload speed
- 80% Less ammo

Extremely-Possibly-Strongest-Impossibly-Very-Much-Overpowered Scattergun

+ 95834786985732984759348699829 Damage Bonus
- 90 Reload Speed
+ Shoots Rockets Instead of Bullets
+ 80 Ammo
On kill : Gets a Flipped Trilby (By the player that you killed)
0-100% Chance to Get Crits

Hax0r Trumpet 99999991337 (soldier banner)

+ you don't lose progress on meter when you die
you gain 25% meter progress when you die
+ upon use, you and players around you gain noclip for 10 seconds (including enemy players)

YOU CANT SEE ME

+ Disguise kit only allows you to become John Cena
+ Instant (de)cloaking
+ Explosive Backstab
+ Loud John Cena music upon backstab
+ Lose all your health upon backstab
+ Communistic education makes everything a plus

Originally posted by just this guy, you know?:

Hyper Trumpet Mk MMXV (Soldier secondary)

(+) On death 100% of your stored Charge is retained
(+) Gain 25% charge on death
(+) upon use, you and players around you gain MegaBuff for 10 seconds (including enemy players)

(!) MegaBuffs gives the effect of the Concheror, Buff Banner, and Battalion's Backup all at once

(-) No charge gained from attacking

I heavily nerfed it, but I think it's much better. Besides, with your old "Noclip for nearby players", people could get stuck.

Originally posted by Commander Mameshiba:

Can't see me (Spy Watch/PDA)

(+) +100% cloak/decloak rate
(+) Explosive Backstab
(+) On Backstab : Loud theme plays (John Cena's theme)

(!) On Disguise: Become John Cena (Modified Saxton Hale)
(!) Communism (Unusual Effect: Hammer and Sickle)

(-) Instant death on Backstab

I re-did some stats, so it would run/work better in-game. Source/Sourcemod isn't the best engine.

The Hottest Tamale

Model: http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2505

"Beans have never been so deadly..."

(+) On consumption:

• +75% Speed increase for 15 seconds
  
• +750 maximum health
  
• Instantly fills health and ammo to max

(!) EVERYONE (Yes, even you) in a small radius (256hu) is ignited upon consumption

(!) Max health becomes overheal when effects wear off.

(-) Put in the "Humiliation" stance during the effects duration

(-) Take Mini-crits during effect's duration

(-) 35 second recharge rate

advancedweaponiser.wikia.com/wiki/Laugh-a-Minute

I figure this one is pretty self-explanatory.

Increased push force
Killing an enemy with a critical hit will dismember your victim. Painfully.
Head size increased on wearer
On kill: User is forced to laugh

The WOLOLOLOLO
Level II Spy Shepherd's Crook

On backstab: convert victim to your team
On miss: Backstab yourself. WOLOLOLOLO

Originally posted by Giveaway412:

The WOLOLOLOLO
Level II Spy Shepherd's Crook

On backstab: convert victim to your team
On miss: Backstab yourself. WOLOLOLOLO

On miss: Instant autobalance. Fixed.

Originally posted by Giveaway412:

Wolol's Walking Stick
Level X Spy Cane of WOLOLOL

Model : http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=287069471&searchtext=

(!) On Kill: You and your victim trade classes
(-) On Kill: You are killed too

I tweaked it a bit

Demoman Secondary : "The Shartin' Charge"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=268161081
[+] Alt-Fire - Demo gets explosive diarrhea, giving him afterburn and bleed damage, bashing into enemies results in them getting afterburn as well.
[-] When charge is completed, Demo dies


Pyro Primary : "The Crackburner"
Same model as BackBurner
[+] 100% Critical Hit against Invincible Enemies [Bonk/Über]
[-] -30% Damage Penalty

Soldier/Demoman Melee : "The Pain (of being a) Train"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=339007708
[!] Alt-Fire - User dies, Ragdoll turns into a train
[-] -30% Resistance to Enviromental Hazards

Engineer Melee : "The Immature Joke"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=283993549
[+] Replaces Dispenser with Grillspenser
[-] Grillspenser bursts into flames every 10 seconds

Originally posted by Spooked Engie:

Demoman Secondary : "The Shartin' Charge"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=268161081
[+] Alt-Fire - Demo gets explosive diarrhea, giving him afterburn and bleed damage, bashing into enemies results in them getting afterburn as well.
[-] When charge is completed, Demo dies


Pyro Primary : "The Crackburner"
Same model as BackBurner
[+] 100% Critical Hit against Invincible Enemies [Bonk/Über]
[-] -30% Damage Penalty

Soldier/Demoman Melee : "The Pain (of being a) Train"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=339007708
[!] Alt-Fire - User dies, Ragdoll turns into a train
[-] -30% Resistance to Enviromental Hazards

Engineer Melee : "The Immature Joke"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=283993549
[+] Replaces Dispenser with Grillspenser
[-] Grillspenser bursts into flames every 10 seconds

I feel like I should make some of the attributes for these, like the crit invincible enemies. I could rework it into a hurt invincible players attribute. A grill dispenser would be funny. Igniting enemies if you're on fire would be interesting as well.