Why not just tell the kids that they won a trip to Disney World and then crash the plane in the ocean?
The fact that they're humans dressed as scary rabbits somehow makes this even more insane.
"We're going out to kill kids."
"Right."
"And we're doing it in uniform."
"uh huh."
"Something that provides protection and obscures our identity, like a tactical uniform with a helmet would be best right?"
"Nah, let's do it in rabbit suits, and make them creepy like from Donnie Darko or something but not too close or we might get sued."