You must use the object that is on your left hand to save a doomed spaceship.

[CoriW]

The knob on one of the cabinet doors on my desk... Umm... Hmm... Agh! I'm dead. >.<

... Actually! ... Maybe one of the ships control boards is missing a knob...? xD

[Agent30632]

My leg.

Dangit.

[midgester222]

A battery from an Xbox 360 controller

maybe the ship is out of power and i can restart it

[Cooly568]

A broken flashlight

At least they can see, if they fix it.

[TheCanadianVendingMachine]

A Hashbrown!

Well, maybe I can use it as fuel?

[Spartwo]

well...time to have intercourse with a spaceship.

[FallingIntoBlack]

A power strip...No wonder the ship is out of power!

[marko dash]

holding up my head, so unsure if mission saved/doomed.

[OdinYggd]

Blankets have a lot of use in space.

Extinguishing a burning control board, insulating living spaces or sensitive equipment so it doesn't overheat/overcool, shading a crew area after losing the sunshield, and that's only the beginning.

[Xeldrak]

A cup of hot coffee.....I could extinguish a fire with it or boil the aliens face away!

[zpox357]

Currently twiddling a water pistol around my finger. Are we being attacked by really wimpy aliens?

[Technical Ben]

My chair (left hand)... I throw it out of the side of the ship, when given advanced warning an incoming rock, and change my trajectory!

My mouse (right hand)... I spin the cable around the antenna of the ship and avoid floating off into space on my EVA.

Honestly, I could solve any problem... [crash]

[gmpd2000]

My cat...

CAT. ACTIVATE YOUR LAZORS

PEW PEW PEW.

meow.

yes my cat has lasers in her eyes.

[Salacain5]

a couch to absorb the shock

[OrbitusII]

My... jaw...

EAT ALL THE SNACKS!!! We must lighten the ship enough to get into orbit! Wait, that'll only make me heavier, cancelling the decrease in mass of snacks...

<Failure>

[General Rarity]

The carpet. This is a BIG carpet.

Might be able to use it as a rigid blanketthing?

[Agent30632]

Beef Ravioli

Food emergency?

[MGUARN]

Umm... this might be weird in same way ,but there is a diesel powered generator. Though it looks old ,and broken we an use it to start up the ship.

[cesarcurado]

A pen?!

I think I would find an use for it

Maybe use it to make calculations? (If there is no calculator nearby)

[The Deep Space Kraken]

my left knee

we're doomed

[swiftgates24]

...A notepad.

R.I.P.

[Alavarien-46]

The HitchHiker's Guide to the Galaxy ?

DON'T PANIC !

[Flixxbeatz]

What can a toothbrush, wallet, EHDD and an empty probiotic drink bottle do for my bidding?

[Tw1]

My leg...

(But my right hand is on my computer. That could be useful.)

[SGT_RIZZO300]

A roll of duct tape, some headphones, and a list of potion recipes for Skyrim.