Mango, orange (juice an orange but the whole thing would be great too) and a wee bit of ginger, all pureed. :) I love this combo.
tomato, dates, lemon juice, fresh basil and oregano, that's a killer sauce recipe IMHO =] and for a salad dressing i love blending mandarin oranges with fresh ginger and pouring that over bok choy, or any greens for that matter.
3 stalks celery, large handful of cilantro, juice of 1 small lime, 1-2 TBS. tahini