Apple iTune Gift Cards - although I'm not a fan of giving gift cards (seems like not a lot of thought went in to giving it), tweens need these. It helps to give them freedom to buy without asking for money, but also teaches how to manage money in a safe way. Besides, without these you'll end up with a bill for $186 for apps in one month. (not that I know anything about that)
$0.99--Doodle Jump - Android Apps on Google Play--*4 NEW THEMES!* Jump, jump, jump to the top, top, top with the Android hit! *INCLUDING 4 NEW THEMES!* WARNING:Insanely Addictive! Jump, jump, jump to the top, top, top with the runaway hit now on Android! Guide the Doodler on a springy journey using springs, jet packs and more. Avoid baddies and blast them with your nose balls!