Tonka was the name in building site toys. The hardwearing, hard-hitting (particularly if one was dropped off a wall onto your head) playthings were the delight of young boys (and tomboy girls) everywhere. Best known for their trucks, Tonka made rock solid, die-cast metal vehicles, with real rubber tyres and tough-as-old-boots paint jobs. To paraphrase Henry Ford, they came in any colour you liked, as long as that colour was yellow.