Here’s a nice little write-up about ancient Maya ‘grafitti’ by archaeologist Rosamund Fitzmaurice: https://mexicolore.co.uk/maya/home/maya-graffiti

Examples from just south-west of Alabama–at the site of Lagarto in the Stann Creek District–can be found on the FAMSI website in a report (and associated Mexicon Vol. XXI 1999 article) by SCRAP friend Phil Wanyerka (http://www.famsi.org/reports/00077/wanyerka_full.pdf).

Examples of patolli boards can also be found in Elizabeth Graham’s volume “The Highlands of the Lowlands” about the archaeology of the Stann Creek District–the image below is of those found at the Kendal site.