Very nice exhibition of Rousseau in Prague saw I this day. Just for example, on one wall (pic below) there was this very famous painting - the middle one here in which the artist himself looms large. It lives in Prague anyway at Veletržní palác. The tiny one on the right is a small ink drawing by de Chirico with this painting sketched above a palette of contemporary painters including Picasso. [Can't find this pic on www :-( ] To the left is not a collage by Jiři Kolář but a pale imitation (literally) of the centrepiece minus the artist. You guessed it, it's called "Waiting for Rousseau". Love Czech humour!
Ths thumbnail can be better seen here - where I took it from: