What objects start with the letter O and where do they come from?

Examples of objects that start with the letter O are:

• oak, a tree that grows in the ground;
• obi, a sash worn on a Japanese kimono woven on a loom;
• oil, a substance that is extracted from a plant or from underground;
• Oldsmobile, a car that came from a factory;
• olive, a fruit that grows on a tree;
• opal, a gemstone that is found in the ground;
• orange, a fruit that grows on a tree;
• oregano, a plant used for cooking that grows in the ground;
• organ, a musical instrument that is made in a factory;
• Oscar, an award (statue) that is made in a factory.