Mix margarita salt and colored sugar crystals on a small plate. Moisten margarita glass rim by taking a wedge of grapefruit and rimming the glass with the wedge. Dip moistened rim in margarita salt and colored sugar mix. Squeeze or juice the grapefruit to make freshly-squeezed grapefruit juice (my grapefruit yielded approximately 1 cup of fresh juice). Add juice to blender and pour in tequila, triple sec, orange juice, honey and ice. Blend until smooth and frothy. For a more frozen effect, add more ice. Pour mixture into margarita glass and garnish with grapefruit wedge. Makes two large margaritas.