In one sketch,
Joost Prinsen plays a little boy named Henkie who asks his mother to pack one of
Hergé's "Kuifje" (Tintin) graphic novel in his suitcase. This is "De schat van Scharlaken Rackham" (originally "Le Trésor de Rackham le Rouge"), first published in the Netherlands in 1947 and never out of print.