To make the cucumber juice, I either juice or blend (and then strain once blended) a long seedless cucumber.
Place the coarse salt on a plate. Rim each glass with a lime wedge and dip the rim in the salt. Fill the glass with crushed ice.
In a cocktail shaker with ice, combine the cucumber juice, grand marnier, tequila, lime juice and simple syrup. Shake for at least 30 seconds, then pour over the crushed ice. Garnish with lime slices and add a few pieces of edible gold leaf for fun!