Smoothie Anyone?

What are any of you using for smoothie recipes. What recommendations for protien powder - do you use almond, soy or coconut milk in them? Looking for ideas? If you are using protien powder what powder are you using that has low carbs?

I make protein shakes. I have a shaker, two scoops of protein powder and a cup of milk (12 g carbs). I buy my protein powder at Costco in big 6 lb bags. It is low carb, 2-3 g per serving I think.