Any long skinny sprinkles will do, change it up with sprinkles that match your party theme/colors. All natural, dye free sprinkles are my preference.
I wouldn't suggest nonpareils (the tiny ball shaped sprinkles) for this recipe. They tend to bleed into the batter and make one big greenish-blue pancake instead of a confetti style pancake. If these are the only ones you have on hand I would wait until the batter is poured and sprinkle them over the uncooked side of the pancake before flipping to avoid this problem.