In 2022 I had a project published in SchoolArts Magazine (Article Here) it was an original idea and project that utilizes the idea of Symbolism, and what a student might “send themselves” in the future. The base in a fold-able envelope shape, and many people have asked me over the last couple of years (since the article came out) for the template. I have it on Teachers Pay Teachers, and here is the link if you are interested.