Cabeza y Cerveza
In a small bowl, combine a 1:1 mixture of sal de gusano and salt. In a mixing glass filled with ice, combine tequila, lime juice, tamarind drinking vinegar, Worcestershire sauce, habañero shrub, and pilsner. Stir and strain into a chilled pilsner glass full of ice. Dip grapefruit wheel in salt mixture and place on top of the glass.