Khurasan Miniatures have posted a preview of the green for a 15mm Ox Cart miniature.
From their website:
For thousands of years armies have moved supplies via oxcart, often thousands of them, hauling much of what the army needed to survive a campaign in the field. Because many games require that the supply and camp elements be depicted on the tabletop, I decided in fall of 2009 to have an oxcart made. It’s been sculpted and is now at the casters.
It will join the growing list of camp or equipment-type models I have had made which are now available or soon will be — a Tibetan tent (now available), a later Medieval commoner’s tent (being cast), a Late Imperial Roman “Vienna Genesis” tent (basically done, just need to get it painted and up on the website)