Chill 4 glasses.
Combine the coconut milk ice cubes, cream of coconut, simple syrup, tequila, orange liqueur, coconut soda, coconut water, coconut extract and lime juice in a blender and pulse until the ice is crushed and the mixture is combined. It should be super frosty. Add more ice if needed, then taste and add a little extra tequila if desired.
Rim the chilled glasses with coarse salt. Divide the coconut mixture among the glasses, and top each with a lime wedge and cherry.
To make the coconut milk ice cubes, pour 2 cans of light coconut milk into ice cube molds. Freeze overnight before using. They aren't necessary; you can use regular ice cubes if needed.