What should I ask for for my 11th birthday

By the way I am a boy and I have a iPad not into like toys

You can look at this two different ways.
1. Let be buy you what they want and say thank you. You shouldn't really ask.
2. Or just tell people to give you cash, so you can buy what you need to have or want. I would go with number "2" I know people will insist on asking you in this date. Number "1" was the old days. But yeah.

video game? books..guitar...clothes...cds...cake!..music system (to put your ipod in?)...decorative item like a lava lamp or something ... ask for a trip with friend to some place, since your 11 maybe a restaurant, arcade place... paintball...adventure park!

have a casual convo about things you like or want to do, to your parents and make it more of a surprise for you!

but I think cake is a must.. even if you dont ask for it. ;)

Don't demand (: Just get the $$$

I would say money and gift cards,
because then you can go to the store and get what you want.