The Last two times I went to the Shrine last March 08 and March of 07 there was one of those Henna Tattoo kiosks set up in the back of the Alamo complex. Not the mission building itself but the complex back by the public restrooms.
I was completely dismayed I called and emailed the DRT to no avail. I finaly got a response from the DRT and they told me they would look into the matter.
I have not been back but am going over there next week with the kids we will see.
If it weren't for the DRT I expect there would be a gift shop inside the main building.