Halloween // Need ideas for a fall-themed costume

My job is serious about Halloween and each department competes for a cash prize. We just had a department meeting to discuss our group costume. There's like 10-12 of us. The theme that was settled on was Fall (leaves, pumpkins, etc.)

To be honest, I think this is the more boring of the themes that was suggested, and yet, its the one my department chose. I am sure we are going to lose to a department that did something funnier.

But despite my feelings about it, I want to give us more of a chance by trying to do something really good with it. Anyone have a fall themed idea?

Thank you!!