Watch this 1975 Japanese commercial for Ronald McDonald themed cups

McDonald's – Ronald's Cups  is a Japanese commercial from 1975 advertising Ronald McDonald themed cups. As depicted in the commercial, the best thing about these cups is that they have the special ability to grow little Ronald legs and walk around your table. It looks like the cups have free will, so keep an eye on them and make sure they don't run away if you acquire one. They are likely collectors items by now.