Chainsaws., lawn mowers, pocket knives, fire, bow and arrow... Sorry, I don't know too many weapons. And I can't remember the name of that spikey one that you throw.
Are you sure that he doesn't have an email that you can send a message to? Maybe go in before school starts, or talk to him as soon as class ends. Maybe ask him about it then. I'm sure he would understand if you talk to him.