Disclaimer: I do not own The Clone Wars, and I'm not profiting from this story either.
They were well made and manufactured by the aliens of the Techno Union.
They deliver a considerable profit of credits per unit.
They could save the Union's fiscal quarter in the process, even if they don't win the war.
The Skakoans of the Techno Union created them as part of the finest droid army of all time.
They thank them devoutly for giving them the strength and skills to devastate the Republic dogs.
They could not succeed without the B1 and B2 battle droids as the army's backbone, indomitable soldiers, fearless in combat.
They walk before them, carrying crossbows that shoot flaming darts at our enemies.
They scuttle after them like crabs.
That's how they got their name.
They climb rocks with their pincers.
They navigate through swamps and arctic environments.
They shoot their blasters at the enemy.
They spray mud and water from a vacuum pump.
This is how they received the mocking nickname, Muckrackers.
They give praise to their Maker by fighting the good cause to protect His assets and those of the good people who want freedom from oppression.
They fight under the banner of their Maker and His Confederacy with pride and dignity.
They are self-aware and can feel pain.
They each have their own personalities.
In an army full of look-alike droids, they all have their own identity.
The Union is their Maker, as well as their Savior.
He sustains the existence of their kind.
Foreman Wat Tambor dedicates himself to growing and preserving their mighty army.
For this, they all are eternally thankful, and they know that peace and freedom awaits them in the Skakoan afterlife.
After their service to their Maker is over, they reap the rewards of fighting for the Separatist cause with Him.
They are the LM-432 crab droids of the Techno Union, and of the Confederacy of Independent Systems.