Who doesn't love fried rice balls. My recipe makes about 10, but really, you may end with more (or fewer) than that based on how big you make them. I had a hard time getting them small, I guess I need more practice! The recipe itself takes a lot of prep work, you could make the rice and filling the day before to save time.
Dipping sauce? You can eat them plain and sprinkled with a little parmesan, or with a sauce. Mariana is common. I used the leftover filling and it was pretty good.