Kevin wouldn't have done this. Christopher? Probably not.
Matthew: "Mom, do we have any rubberbands?"
Mom: "Why?"
...no real answer provided...Dad and Mom look around, finally locate one. About 10 minute later, Matthew emerges from the house, with the Y-shaped stick he's used his scotch tape and rubber band to convert into a pretty decent weapon.
Dad: "Where did you come up with the idea for that?
Matthew: "The Simpsons Movie"
Guess we should count ourselves lucky that he can't build lightsabers.....