Reusable gel packs. These are cold therapy packs which contain a form of gel and are kept in the freezer until required. They are reusable and in many cases can also be heated either in very hot water or a microwave to offer warm therapy instead.
A clown car is a prop in a circus clown routine. A common example of such a routine involves an implausibly large number of clowns emerging from a very small car, to humorous effect.
The official clown has been played by at least ten different actors since 1963, including Squire Fridell. Mr Fridell starred as Ronald McDonald for seven years from 1984, after his famous role as Toyota Man in the long-running 'oh, what a feeling' adverts.