Veggie noodles!!! (What veggies to use for spiral slicer?)

I got a spiral slicer for making "noodles" out of vegetables. So far I've had good success with zucchini and yellow squash. Any other suggestions for low calorie veggies to use? I tried carrots but they don't slice so well raw. (I did get a julienne slicer for carrots.) Potatoes slice well, but don't stay together as well, nor have the texture that the zucchini and yellow squash do. I imagine I could do beets and rutabagas, but they are higher in calories/sugar, so if I do use these I'd add them more sparingly. Here is the model I got. http://www.amazon.com/World-Cuisine-48297-99-Tri-Blade-Vegetable/dp/B0007Y9WHQ/ref=pd_bxgy_k_img_c