Sources for cardboard Parthenon model plans include StormTheCastle.com, as of 2015. This website allows users to build Parthenon models using its plans at no cost.
StormTheCastle.com offers plans to make a model of the Parthenon out of cardboard cereal boxes. This website offers a material list, detailed instructions, and photographs of the final project and some of the steps. It includes tips and notes on assembling the final model.
The site also includes a video of the project and a link to a YouTube video. The website's video includes footage of the actual Parthenon in Greece. These plans include a free booklet and a link to download and print it.