A cuckoo clock is a small but intricate antique with hanging weights, a delicate pendulum, easily tangled chains, and fine carved details that snap off. Its charm is also its fragility. Removing the weights and pendulum, securing the chains so they cannot knot, and cushioning the ornate carvings are what keep a cuckoo clock working and whole through a move.
Pro tip: Securing the chains with a twist tie prevents the maddening tangle that often needs a clock repairer to fix.
Watch out: Do not move a cuckoo clock with the weights and pendulum attached. They swing and damage the mechanism.