Add frozen pineapple, Tanteo Blanco Tequila, coconut milk, lime juice and agave to a blender and blend until smooth.
Add kosher salt and chili powder to a shallow dish and combine. Run a lime wedge around the rims of your cocktail glasses to moisten. Submerge in the chili salt mixture until coated.
If desired, garnish with a pineapple wedge, pineapple frond and lime wheel.