[1][2] Waalkens started an art gallery in the stable of his farm in the 1960s, where experimental artists were offered a place to exhibit their works.
[1] In 1963 Waalkens organized an exhibition along the public road in the municipality under the title "Statues in Finsterwolde" with the sculpture of ten artists.
[1] In 1997 Waalkens organized his last notable exhibition, named the Koetekendagen (Cow-drawing-days), whereby thirty artists were presented drawing, painting or sculpturing cows.
In 2000 Waalkens received the Benno Premsela Prize from the Netherlands Foundation for Visual Arts for his stimulating attitude towards artists.
Earlier, in 1989, he had been awarded the Zilveren Anjer by Prince Bernhard because of his merits to the art.