17 September 2016 Last updated at 13:33 BST
Now a seven-metre wide model of the giant peach that features in one of Dahl's most well-known books, James and the Giant Peach, has hit Cardiff's streets as part of the City of the Unexpected event.
Scenic artist Frankie Locke told BBC Wales that working on the peach is "the most unusual job she's ever had."
It's taken 60 hours to paint - and six hours to inflate.