The crossword solution for the term 'Partner of Cones' is 'Rods'. Rods are cylindrical objects that are often used in construction and engineering. They are also used in many other applications, such as fishing rods, curtain rods, and even musical instruments. Rods are usually made from metal or plastic, and can be found in a variety of sizes and shapes. Rods are often paired with cones, which are cone-shaped objects, to create a variety of structures and machines.