For the opening of the museum, within the framework of the "Be the artists’ guest" project, David Dubois produced the "Chênavélos" and "Bancs-terre" (Earth Benches) in concrete, installed at the entrance of the museum. The latter are cleverly camouflaged as seating furniture. The "Chênavélos" located in the park are trunks of oak posed horizontally on the ground in order to commune with the environment. They are also called on to accumulate two functions of support at the limits of the found object : firstly purely utilitarian for bikes, they also become a basis for any vegetation which cares to develop there.