I wish for a toilet seat that raises and lowers itself on its own.
Granted, but does as long as you're using it (repeatedly), which is painful for you.
I wish that I have more time and money to work on my own computer game.
Granted, but your game encourages such violence that you lose all your money and spend the rest of your life in jail
I want to take a long vacation in a paradise island, with all expenses paid.