Free Kinect game - Kinect Party
Through the end of this year, get this Kinect game absolutely free (might require Gold, not sure). This is the sequel to Happy Action Theater, an augmented-reality style casual game. My daughter really likes Happy Action Theater, so I'm sure she'll love this one as well.
WARNING: Downloading the main game only gets you the demo version. Afterwards, go into the game details to extras, and be sure to download the "Kinect Party - Full Unlock" item to get the whole game free. I wasn't able to do this from inside the game.
Main PC: Antec Solo II | Gigabyte GA-Z77-DS3H | Core i5 3450 | Crucial Ballistix 16GB DDR3 1600 | HIS IceQ 7870
Intel SSD 330 240G | 2x500GB HD RAID1 | Corsair TX650 Power Supply | Dell U2312HM