Ben frowns and says forcefully, "No." He walks past Kalinda and into Kraven's class. He walks up to the teacher, pulls out his blue prints, and lays them on the table. They show what appear to be two eighteen inch long bars. With the flick of a switch, a scythe-like blade would pop out of one, and a narrow, dagger-like blade out of the other. With the press of a fingerprint scanning button, the two halves would extend into four foot long bars that could be connected together. When not in use, the weapons would be in a custom sheath on Ben's back. 

Kraven nods in approval and says, "I like that you have a way to use them, even if the electrical parts aren't working. You'll have to make sure the body is made out of a strong, but light material, preferably not metal. Perhaps you should talk to Mr. Grayson, I'm sure he could help you create this." He scoops up the blueprints and gives them back to Ben, then says, "Now go sit down." 

Ben nods, and after returning the sketches to his pocket, sits in the back of the room,