Stix
Stix were strange magical entities confined to 2 dimensions. They took on the form of stickmen drawings, and lived out life upon surfaces. As magical phenomena, stix didn't require food to eat, water to drink, or air to breathe.
Stix were a form of living, self-writing wall drawings. While they were confined to a 2-dimensional life, they were able to observe the world around them, and were so enamoured by the greater world that they would spend long periods of time reenacting behaviours and historical events that they had witnessed. Stix "villages" could appear in different places which served no purpose other than for the stix to emulate life that they saw in an existing settlement. Wide-scale stix wars could rage on the wall of an old buildings, although they were nothing more than a convincing reenactment of an actual military conflict.