Another sweet something to chew over courtesy of Letters of Note. Although, being as it's about Willy Wonka, it may be an everlasting gobstopper, and therefore you definitely shouldn't chew.
And here's an interesting morsel that Letters of Note missed out on. Roald Dahl originally wanted Spike Milligan to play Willy Wonka, and it was Stuart's refusal which eventually to Dahl disowning the film and forbidding any future adaptations of either Charlie and the Chocolate Factory or its sequel Charlie and the Great Glass Elevator. This embargo stayed in place until the Dahl estate allowed Tim Burton to make Charlie and the Chocolate Factory in 2005 - and for the record, it's far better than the original.