Here's a thing I've been idly daydreaming about while I wait to play my first session:
I guess this is a custom move or maybe the start of a class:
The Machine
There's a lot of incomprehensible junk lying around in Apocalypse World, and you've managed to get a bit of it running. There's no manual, and no one else has seen anything like it. You keep the thing running with luck and prayers and guesses, but when it's working, it's your baby, and everybody else better look out.
By default, the machine can be moved around with difficulty, fits one or two people inside, and provides one armour when you're inside.
Then choose three:
The machine can fly
The machine can drive real flippin' fast
The machine has armour +2
The machine has a weapon, harm 2, close, loud, reload and choose two of far, auto, area, ...
The machine's weapon has harm +2
The machine can drive through almost any obstacle
The machine can hold 10-15 people
And choose two:
The machine runs on something rare and expensive - pure water, batteries, brains
The machine is finicky and difficult
The machine is flimsy (-1 armour)
The machine can't be moved at all
...
Choose a name for the machine:
The Beast, Baby, Zephyr, Little Friend, Monster, X, Clarice, The Mule, Ol' Clanky, Brother, The Thing.
Say what the machine looks like and such.