We are (ab)using git in some fun ways. Our designers use branches we setup with git flow to develop and manage assets. We deploy from develop and master branches to dev and production servers. We also use the github api to allow the dynamic loading of the assets from the head of any one of the branches for internal testing.

I've been pleasantly surprised how well the designers have taken to the workflow, and its great to take advantage of the flexibility of git especially when we don't have the time to roll our own backend to cover all those bases.