Want to learn how to be a ninja? If so, this Ninja Throwing Knife set is probably right up your alley. Whether you’re an aspiring ninja, knife collector or just someone that wants to throw knives, you will be happy to learn this set is only ($7) on Amazon. The (3) throwing knives measure 6.5 inches and come with a nylon case. Still not convinced, there are tons of Amazon Reviews to help make up your mind.