Mariano Margarita Do They Still Make Mariano's Margarita Mix?

Do they still make Mariano's Margarita Mix? - mariano margarita

It was originally human, Mariano Mexican restaurant in Dallas had made, Texas, I believe. I read that it is closed.
It will do in a bucket and all you is the add tequila .... throw in the freezer and the next day - Frozen Margarita. DELICIOUS!
Thank you!