Make a Wish. Have it horribly corrupted.

[Jarl ulfric stormcloak]

Granted, but aliens come down and blow earth up.

I wish for my sound to multiply.

[Nightmare Eater]

Granted but it blows off everyone's ear drum so no one can hear it.

I wish for a dragon for a knight to kill.

[Jarl ulfric stormcloak]

Granted. Unfortunatly, it was the dragon of this near-immortal guy,who goes mad, kills you, and takes over the world.

I wish that it was a different dragon.

[Nightmare Eater]

Granted its you. A knight comes and your dead.

I wish for a punch that is recorded no where near my location and I am invincible at the time any way.

[spritey]

Granted, but after the time passes, you die.

I wish for someone to post.

[Hahex and Oshawott]

GRan bU tis cplatealy illegbli

I wish for more money

[spritey]

Granted, but the money burns right after.

I wish for a cute and harmless puppy.

[Skarmory8]

Granted, but the puppy's mother is the evil dragon from earlier.

I wish for a piece of sellotape.

[Laprabi]

Granted, but it is too sticky and as soon as you touch it it becomes stuck to your hand and you can never get it off.

I wish for a wish.

[Skarmory8]

Granted but you become hopelessly obsessed and end up sitting in your room giggling wishing for more wishes.

I wish for love  XD

[OranBerrySandvich]

Granted. I hope you enjoy obsessive fangirls who gather outside your house and won't let you sleep and you collapse due to exhaustion and smash your head on something. You die.

I wish for slippers that are corrupted without a generic corruption, like "You lose them."

[Mr.Mewtwo]

Granted, but the puppy's mother is the evil dragon from earlier.

That's the best one for a while.

Granted,but they are the evil dragons slippers from earlier.

I wish for cake.(Pleasedothememepleasedothememe.)

[Nightmare Eater]

Granted but the cake is real this time. Here you go.

I wish for numbers.

[OranBerrySandvich]

Granted. For reasons obscure, you are now strapped to a chair. Someone repeatedly shouts at you to remember while the FUDGING NUMBERS play in your head over and over again. You have a flashback. You die in the flashback. You die.

I wish for a the black Scottish cyclops to no longer be extinct because of a backstabbing alley skulker.
Hooray for obscure references.

[spritey]

Granted, but after the cyclops is no longer extinct, you die and then the cyclops becomes extinct again and you don't even know it.

I wish I could sleep well and wake up at the right time.