I've been a full size candy bar house for a while. Buying bulk candy bars spiked in 2021. Boxes usually average about $1.25 per bar, but you can find sales at Costco at $0.60 each if you aren't picky on exact candies.

Non-candy options I sprinkle in that are hits are rice krispy treats, bags of microwave popcorn (unpopped) and the packaged 2 pack of cookies.