There was another example of this in Australia back in 2016 where some prediction markets offered a novelty bet on what colour tie one of the TV hosts would wear.

The host got wind of it and, for fun, changed ties at least five times throughout the evening.

https://twitter.com/sportsbetcomau/status/749219697359396864

https://www.smh.com.au/politics/federal/federal-election-201...