The term 'Mobile Maker' is a reference to the American sculptor Alexander Calder, who is best known for his invention of the mobile. Calder was born in 1898 and is considered one of the most influential American sculptors of the 20th century. He is credited with creating the first kinetic sculptures, which are sculptures that move due to air currents or motors. His works are often referred to as 'Calder Mobiles' and have been featured in many museums around the world. The 6-letter solution for 'Mobile Maker' is CALDER, while the 15-letter solution is ALEXANDERCALDER.