That ship has sailed. Microsoft has fully moved to dynamic backgrounds and profile themes instead of virtual dressing rooms.
If you find a digital code for an Avatar item on a third-party site (like eBay or Eneba) that hasn’t expired. Redeem it via xbox.com/redeem immediately. The "Secret" Way: Xbox 360 Avatar Awards Don’t forget the Avatar Awards system. Certain games still unlock free Avatar gear if you earn the achievement . xbox 360 avatar download
Remember the "Avatars" era?
If you change gamertags, your Avatars follow your Microsoft Account—not the name. So don't worry about losing your digital wardrobe. Did you manage to rescue an old Avatar item? What was the weirdest outfit you ever put on your Xbox 360 Avatar? Let us know in the comments! That ship has sailed