I play way to much Dota 2. There is an amazing amount of things you can buy and earn in that game to customize the experience. Valve (Dota) doesn't make all of the items, they are made through tools provided by Valve, approved, then sold on the marketplace.
Facebook needs to do the same thing. Let people design objects and put them on in the marketplace and then facebook/oculus takes a cut. It's disappointing how underdeveloped this part of the experience is given how easy it could be to expand it.