He could always just throw them at someone.
Although, if his aim sucks then he's screwed. Maybe they'll be nice and give Murphy a stick so he can at least hit someone with something other than his fists if they get attacked by Grounders.
Oh, and I added myself to the list.
I'm still not a Murphy fan but I can't help my love for Richard Harmon. Who knows, maybe he'll successfully turn the tables for me and make me actually Murphy.