Line each glass with salt if desired. I put out two plates, one filled shallowly with water, the other with salt. I dunked each glass in the water, then quickly into the salt. Set aside till needed.
For the Simple Syrup:
In a medium saucepan mix 1 ¼ lb. sugar with 16 oz. of water, cook while stirring occasionally over medium heat until the sugar dissolves. Refrigerate. This will last for 24 hours.
Margarita Mix:
Squeeze juice from halves of lime, orange, and lemon into a quart container and add remaining half of the simple syrup to the fruit juice. Then refrigerate the mix. These two mixes will last for 24 hours.
Fruit Ices:
Blend each fruit, ice, and two ounces of simple syrup separately until thick. Store separately in bowls. These three mixes will last for 2-3 hours.
Putting it all together:
Blend the margarita mix, and some ice in a good blender until thick.
Now scoop about two teaspoons of each fruit ice in the bottom of your chilled Martini glass. I like extra strawberry in mine so I use that as the base then use all three fruits randomly on top.
Now top the fruit ices with the thick margarita mix.
You can now add a splash of Sprite over top.
Place lime,orange and lemon wedges on the rim for garnish.