Oh. I love this! These look like chalkboard drawings, but they’re actually 3′ x 4′ oversize posters. Download them from Caravan ($5/design or $12 for all 3)), and follow the included instructions to have them printed at Staples (about $6/poster). Good looking and easy peasy. These would be cool in a bedroom.
The Latin words on the poster? From the Stars, Knowledge. And Yet it Moves. Fortune Favors the Brave.
P.S. — Caravan also offers Thanksgiving posters.