In the summer of 1967, Oxenaar accepts the proposal of the Swiss sculptors Jean Tinguely and Bernard Luginbühl to create an exhibition with recent work. Kinetic sculptures by Tinguely are shown in the museum and the large exhibition field in the sculpture garden is adorned with colourful sculptures by Luginbühl. Oxenaar writes about the presentation: ‘It was fascinating to observe that the colourful works with a distinctly technical character, in contrast to nature, actually came into their own outdoors’.