On a small plate, stir together the salt, sugar, and lime zest; spread into an even layer. Gently rub 1 of the lime wedges around the rim of a rocks glass, then dip the rim into the salt mixture. Refrigerate until ready to use.
Fill the rocks glass with ice. In a cocktail shaker, combine the coconut cream, tequila, lime juice, orange liqueur, and simple syrup, then fill with ice. Cover