An empty pack of chewing gum. If it had been full, and I didn't have braces, maybe I could've done some chewing and stuck them but... since it's now just a tiny cardboard box capable of only poking the eyes, I think 1/10.
A toy lightsaber. It is pretty good for hitting, but not so good at cutting off heads, so I'll give it 5/10 for defence If it was a real lightsaber though, 10/10