I made these last year, following this site's directions slightly. I used scrapbook paper in Halloween themes and then bought the wooden letters, and painted them the colors I wanted. Really simple and really cute!
BOOS BLOCKS TAGLIERE IN LEGNO DI ACERO TA51 CM. 51 X 38 X 4 https://www.chiaradecaria.it/it/attrezzature-per-macelleria/2921-boos-blocks-tagliere-in-legno-di-acero-ta51-cm-51-x-38-x-4-662969000000.html