What does uncle Marcos make from the materials he brings back in enormous boxes from the house of the spirits?

In "The House of the Spirits" by Isabel Allende, Uncle Marcos collects various materials from his travels, including items like fabrics, tools, and artifacts. He uses these materials to create a variety of inventions and contraptions, showcasing his imaginative and resourceful nature. His creations often reflect his eccentric personality and serve as a means of connecting with his family and the larger world around him.