You can get some Maya-style artwork from outdoor vendors who set up unobtrusively at the ruins.
El Panchan, . It is relatively near the ruins and has cabanas and small cabins and common sleeping areas with hammocks. A cabana with access to a common showers and bathrooms facility is 80 pesos, approximately 8 USD. The little Otulum river runs through the location.
Don Muchos is a great restaurant at El Panchan as well.