A family size cereal box proved to be perfect for this quick project:
I measured about 3" on the shortest side, up to 7" on the tallest
Then cut along the lines using a craft knife
Here's what it looked like after cutting
The trickiest part was covering the box with patterned paper. Other sites recommended using fabric, but since I didn't have any I liked for this project, I ended up going with a Wooster & Prince paper I had on hand.
I ended up just tracing each side of the box on the back of the paper, cutting out each piece with about a quarter inch allowance, and then gluing them in place with a glue gun.
Here's the finished product:
Easy peasy! Now I just have to actually start cooking some of the recipies in these magazines...