Rich and I went to the Roald Dahl Museum and Story Centre at the weekend in Great Missenden, where Roald Dahl lived and wrote for 36 years. http://www.roalddahlmuseum.org/ No kids in tow, just two big kids.
I love these fridge magnets designed to help you build characters.
Here's mine: 'A baboon, hairy and bulgy with squelching armpits as revolting as a rhinoceros with filthsome underpants.' Feel free to add yours in the comments section.