I saw something like this last year, but I couldn't remember where. Then I saw this post at Someday Crafts for 2x4 candy corn and it was definitely something I wanted to make right away. Problem was, I'm still a bit scared to use the miter saw since I almost snapped off my finger earlier this year, so I had to wait until my husband got home to cut them out.
I ended up making a bunch - some for the ladies I visit teach, my mom, sister, and mother-in-law. And I had a craft/play date with a friend where we made some projects while the kids played. I also ended up keeping a couple for myself.
It was easy to paint several during the kiddos nap times as well. I always think it looks weird to put yellow on the bottom for candy corn- it seems like it should be orange, but I looked up pics of the candy online to double check. But I think they look cute either way.