My friends David and Lisa have a toddler who plays with nothing but toy cars. He has dozens, if not a hundred different models. At the ripe age of two, he knows the make and model of each of his prized vroom-vrooms (the child would scoff at my infantile nomenclature). The best thing about his hobby is that he likes to keep them all lined up, neat, and orderly. When he finishes playing, he dutifully puts each car in it proper place. Vivavi has a piece of sustainable, non-toxic furniture that I'm sure my young friend would love: The Fuji Toy Box.