The Crater Maker
Class: Demoman
Slot: Melee
Basis: Bottle
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=571039729&searchtext=
(+) Alt-Fire: Detonate your explosives dealing damage equal to your max health within 27.3 ft. scaled down to 53% damage.
(+) Move speed increases as the user becomes injured while this weapon is active.
(-) You become self-marked for death while this weapon is active
(-) -25 Max health on wearer
(-) 25% Damage penalty

The Persistent Persuasion
Class: Heavy
Slot: Primary
Basis: Minigun
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=440768455&searchtext=
(+) Damage is dependent on 5% of your current ammo
(+) 50% Increased max primary ammo capacity on wearer
(+) On kill, restore 10% of your ammo capacity
(-) 15% Damage penalty
(-) -1 Bullet per shot

The Shredder (v2)
Class: Spy
Slot: PDA 2
Basis: Sapper
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=229508165&searchtext=Shredder
(+) Sapper damage increases by 35% every second
(+) 100% Increased sapper health
(-) Sapper loses 25 health every second

The Shredder
Class: Spy
Slot: PDA 2
Basis: Sapper
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=229508165&searchtext=Shredder
(+) Sapper leaches health off of its damage dealt
(+) When a building is destroyed, it leaves no metal behind
(-) 20% Slower sapping rate
(-) 15% Sapper damage penalty

The Hardwire
Class: Spy
Slot: Melee
Basis: Knife
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=646712619&searchtext=
(+) On backstab, create a electromagnetic field disabling all enemy buildings and firable weapons within a 27.3 ft. radius where your target died. Field lasts until your victim respawns.
(+) 100% Damage bonus vs. Buildings
(-) 25% Damage penalty vs. Players
(-) Disables sappers from being used on wearer

The Bonk'em Sockers
Class: Heavy
Slot: Melee
Basis: Fists
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=81386145&searchtext=
(+) Hold down fire to charge your "KNOCKOUT" meter. Full charge crits and knocksup the enemy while super stunning them for 2 seconds. Performing early mini-crit and knockup the enemy while stunning them for 1 second. Reach a specific meter point to perform either one.
(+/-) 10 Second charge meter
(+/-) 4 Second recharge meter
(-) 40% Damage penalty
(-) Charging will slowly slow your movement speed by 5% every second

The Headless Maniac
Class: Demoman
Slot: Melee
Basis: Any Sword w/ No Stats
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=6448&searchtext=
(+) Mini-crits on headshots
(+) Collect up to 3 heads to grant headshot blocks. If headshotted, your normal head will pop-off equipping a stored head as a replacement. You take no damage when this occurs.
(+/-) This weapon has a longer melee range but holsters and deploys slower.
(-) -25 Max health on wearer
(-) 20% Bullet damage vulnerability on wearer

https://www.youtube.com/watch?v=HB7e-EXjbqA
The last 2 weapons awfully look A LOT like something someone already made *cough*. Whenever you see a youtuber either famous or not, you just get the feeling that this is a lot similar to someone elses. Not saying its a problem but there's that slim chance that that person took an idea or not and just tweaked it a sminch. Thats why I personally hate weapon suggestions that arent posted on this thread. Skylord Sweddy is fine because his weapons are completely different even some look like mine in which I dont really care honestly.

The Aerial Air Buster
Class: Demoman
Slot: Secondary
Basis: Stickybomb Launcher
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=763154259&searchtext=
(+) Projectiles dont ark
(+) 0.5 Faster sticky arm time
(+) Max charge time decreased by 40%
(-) Decreases your sticky arm time by 0.05 seconds every 5% charged.
(-) Stickies automatically detonate upon arm time

The Slam Drunk
Class: Demoman
Slot: Secondary
Basis: Any Shield w/ No Stats
Model:
http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=762112481&searchtext=
(+) Alt-Fire: Propel yourself high into the air (Should last a little shorter than a normal charge duration) causing your next attack to crit or mini-crit depending on how long until you attacked.
(+) Melee kills fully recharge your "DUNK" meter.
(+) 30% Explosive damage resistance on wearer
(+) 20% Bullet damage resistance on wearer
(+) 15% Fire damage resistance on wearer