Make a Wish. Have it horribly corrupted.

[Jarl ulfric stormcloak]

You granted it yourself. You are now their 'beast' friend, You are a big ugly beast. I wish I could go eat a sandwich right now -_-

damn my bad spelling! 

granted, heres a knuckle sandwich *punches you*

I wish the world was ruled by abras, but I was every abras best freind!

[MICKEY]

Hmmm? Are u asking the same question again?

Granted but all your human friends ditch you because they think that being friends with animals is weird. Also you can't understand the abras O.o

I wish I could fly

[Buttons The Plural™]

granted but you can never be lower than you are. so if you fly up you can never fly back down.

i wish i could transform into anything i could possibly imagine. whether it exists or not

[Z:illyhoo]

Granted. You turn into a Cerberus (a dog with 3 heads) and you keep arguing with the other 2 heads and you get sick of it.

I wish I could finish my story, publish it, and make it a success.

[Shaydra]

You finish your story, publish it, and it's a success, but there's content in it that extremists of something-or-other don't like and they manage to get the government to ban it.

I wish my feet could, for once, feel pleasantly warm instead of always feeling ice cold.

[Buttons The Plural™]

Granted but your slippers get stuck on your feet they they sweat so much it makes your slippers horribly soggy... and drippy...

I wish my package i just bought would arrive

[Shaydra]

It arrives, but the content's broken beyond use or repair. 

I wish I could've gotten the Yellow Forest event for the Pokewalker.

[Gusparce]

Granted, but you cant enter it. I wish my cousin would post more on this site -_-. (one post.....)

[Shaydra]

They do. They post so much and so obnoxiously that they're banned.

I wish I had a mechanical pencil, normal pencils are a pain to sharpen.

[SenorSaucy]

granted but the mechanical pencil breaks making you resort to wooden pencils

i wish that i knew i had a wish earlier

[ZombieSteven]

Granted you didn't have a wish.
I wish I could hack.

[ShiraBliss]

Granted, but you screw up and delete system32 by accident

I wish for a goat

[EagleEye101 : Impactz]

Granted but the goat eats a radioactive carrot which makes it mega-size which then wanders around Britain (Like Godzilla) and destroys anything in its path.

I wish for a Ferrari F430 Scuderia 

[Lugiafanatic]

Granted but it doesn't work.

I wish for a sandwich.

[Gusparce]

Granted, an old stinky 47 year old sanwich. I wish for ULTIMATE POWER!!!!!!