Board Thread:Plants vs. Zombies 2: It's About Time/@comment-10666155-20150518205607/@comment-5079138-20150518224956

I think it's one of these:

Cob Cannon

Predacorn (pormanteau of Predator drone and corn, fires explosive corns airborne)

Corn Streamer/Corner (shoots corn kernels rapidly, around 5000 RPM. Will turn into popcorn if passes through Torchwood)

But the biggest possibility is the cob cannon.