Made from birch plywood with a hand-rubbed child-safe finish and available in various colours, these original wheeled creatures can be raced, rolled or left on display.
Based in Argentina, Tractor Verde have been designing and manufacturing their colourful eco-toys since 2003. They sell their products throughout the country (see list of on and offline stockists on their facebook page here).
I love their colourful, clever designs and can see their DIY sets being very popular elsewhere. I found the mini-city for sale here, but please contact the company if you're interested in buying any of their products or even selling them in your shop.