Copper art

I found a copper raft small not real weighs 3/4 lb , a primitive version of what Chinese villagers must have used 6 copper pipes as logs twined with fine copper wire , has a sail made of copper - so and - so on - very nice scale model
I'll keep it cause i like copper but i wonder what these toys cost . I think it looks to be 5 years old as the copper twine is still bright in color