Filling the compartment or placing a larger
solid object on
top of compartment, for support leg to lean on, are common solutions.
Bombs and water containers will explode and release water respectively when struck, and other
solid objects can react independently
of the main terrain, falling when dislodged to create bridges or blockages, or else drop the unlucky worm standing on
top.
In other sculptures, such as Ikea / Zanussi (1986), Lavier stacks common
objects, in this case an armoire on
top of a freezer; another, Knapp - Monarch /
Solid Industries (1986), consists
of an electric heater atop a file cabinet.