Sometimes Girls like the boys stuff and vice -versa. I have no problem with my kids playing with toys aimed at the opposite gender. My daughter loves lot’s of “boys” thing but would probably draw the line at having a black Ninja party. This idea by Sew Can Do is a perfect blend of two genders. I love the pink Ninja cupcakes they are adorable. The Japanese themed snack bar is also a great idea. Girls Ninja Party.