Some of my favorite weapon ideas from the TPS thread, adjusted to BL1 mechanics.
Load up on guns; bring your friends.
Anshin shield. Increased shield capacity.
Increases max health.
Max health is increased by 25% for every ally with this shield equipped.
20% of friendly fire damage is converted to health.
Faster than you can believe.
+50% movement speed when no enemies are hostile.
-25% movement speed when there are hostile enemies in the area.
Carry on, my wayward son.
Anshin shield. Increased max health bonus.
Powerful health regeneration. Gets stronger the lower your shield capacity is.
Banana for scale.
Torgue MIRV grenade mod.
Every child grenade bounces three times, creating explosions.
The World's Second Sharpest Knife ™
I should bloody hope so.
Attention! Sharp blade.
Always spawns with blade attachment.
Lowest fire rate in the game (0.2)
Melee hits inflict elemental damage.
Elemental melee hits benefit from elemental bonuses.
Each melee hit costs 10 ammo.
No element bonus if less than 10 rounds in magazine.
Hyperion sniper rifle.
Deals increased damage if shield is fully charged.
Killing an enemy that did not inflict damage to you restores 100% shield capacity.
I am Droog.
Vladof sniper rifle.
Bullets that hit enemies ricochet to another enemy.
Bullets have a chance to ricochet from the second enemy to a third.
Critical hits ricochet to critical locations.
The way it's meant to be plagued.
Maliwan sniper rifle.
Always spawns as corrosive elemental.
Increased damage and tech pool.
+400% status effect duration.
Somebody stop me!
+150% critical hit damage.
2% of inflicted damage is converted to team health.
It does what?
Comes in double elements (the elemental pair is random).
POW! Right in the kisser.
Always spawns with blade accessory.
+300 % melee damage.
Melee hits benefit from critical hit bonuses.
I bet you're naked under that shield.
Always shock element.
Increased magazine size, and reload speed.
Enemies affected by its status effect generate tesla coils that damage nearby enemies.
Slice and dice.
Tediore assault shotgun.
Each shot has as many pellets as its advancing number in the mag.
Up to 6 pellets.
Pattern is that of the corresponding number on a die.
Each pellet retains the damage of the item card.
Mandatory blade accessory with +180% melee damage.
Karma is a bitch.
No projectiles. When fired, it produces a small explosion from the barrel, which reaches about 3 feet (1 meter) far. Tremendous damage. Low fire rate. Increased magazine size.
As long as you have a kill skill active, you get double fire rate, reload speed, and magazine size.
Requires an active kill skill for the effect to work.
You had one job.
Reduced magazine size.
Increased reload speed, and projectile velocity.
Fires a single projectile with 100% accuracy.
Projectiles that do not connect with an enemy ricochet and hit you.
In the end it's all nice.
Increased fire rate.
5% of inflicted damage is converted to shield capacity.
Such sweet sorrow.
Increased tech pool.
Comes in all elements.
Kills increase action skill cooldown rate.