Ninja fighters are an excellent value, at $9 for 100, and can be had from Vending-USA.com.
The ninja fighters you see here are not mine, and be aware that although the image on the ninja fighters product page at Vending-USA.com shows a black ninja fighter, there were no black ninja fighters in the bag. These ninjas come only in authentic ninja colors: pink, orange, yellow, green, blue, and purple in 6 different poses. There was at least one example of each color-pose pair, except there were no orange or yellow ninja fighters with sais. Also, some of the purple ninja fighters were a slightly bluer shade of purple than the others. Your mileage may vary.