I'm upset for not taking a picture but I can justify by saying: It was delicious and I drank it all in a few gulps!
I asked my server (as I always do at many Mexican restaurants) if they serve a Banana Margarita. My server looked at me and said he will ask the bartender, as he winked his eye. He came back a few minutes later with a large glass and asked if they made it right. OMGGG! It brought me back to the first time I had it at a small mom and pop restaurant. Yes! I told him it was awesome and thanked him. After I was done, he brought me another one and told me it was on the house. He said maybe they will put it on the menu. I hope they do!