We are having a popcorn bar at our wedding to double as a light snack later in the evening, as well as favors. I just ordered 400 cups of popcorn, 100 cups each of regular, cheddar, caramel, and kettle. We have about 150 guests, so this should be plenty lol. But we also want to include things like m&ms, peanuts, mini pretzels, maybe Reese's pieces, etc. how much quantity-wise should we stock of those little extras?