to wish 3 more wishes maybe? 
Why wish for a limited wish, why not ask for an unlimited wish. 
Since this is just for fun if that's not allowed. Then I would ask to see bitcoin hitting $1M as soon as possible.
Because humans are basically greedy, and will never be satisfied with what they already have. So it is not enough if only one wish is given,
it is true that I will also ask for unlimited wish if it is allowed. Maybe as such things cannot be granted, if I had to ask for one wish in life,
I would ask for health granted. Because if I have a lot of money, but don't have good health, I can't enjoy it. For me health is the most important
thing in life.
You can maintain a healty lifestyle and you can provide your medical needs if you have enough money. No need for health cards or insurances if you are wealthy.