Commodities of Martian Rails: Green Martians

Martian Rails (2009), the crayon board game manufactured by Mayfair Games about railroading on the Red Planet in which players build tracks and haul freight, has a long list of cool commodities that players can transport to generate revenue for their rail companies. For example:

Green Martians -- Members of the most uncivilized tribes of native Martians. They are fifteen feet tall, four-armed, and equipped with tusks. Their largest city is U-Gor. Historically, they have been at war with the Red Martians for eons. Note: The Green Martians of U-Gor should not be confused with the Greens, a human political party that believes in the complete terraforming of Mars.

Martian Rails is loaded with references to Martian SF!