here is the trick with margaritas, sour mix and lime x are poison and should never be used with drinks. A margarita a the juice of 1.5 limes 2 ounces silver tequilla and 1 ounce gran marnier or other orange liqueur. You can flavor your salts and learn how to work with simple syrups which are equal parts sugar and water mixed with whatever flavors of your choosing. I make a mint, lemon verbena, anise, symple syrup that I use for a take on a mojito but for you I would use whatever spices or fruits available. Snaggle makes a bangn michelada which you cant beat on a hot day. You can also infuse liquors with fruits and spices, you should only leave the fruit in the alocohol for 10 days and you get about three weeks to use the booze, watch the heat. Also take a look at Imbibe.com its a great magazine and there are a number of really good links on the site. I would be willing to come there and help you set up and show some drink recipes for room and board for Snaggle and I. It has been said I will work for beer and more waves, its kind of true.