The Fun Flag for Neodymium, element Nd, is based upon the flag for ND: North Dakota. Instead of the North American Bald Eagle, there is an atom in the center with green electrons. Also the bottom fancy banner has the name of the element instead of North Dakota. The ribbon up top also has the date of discovery and the Nd abbreviation. The shield is also a little different. In the chief area is the atomic number 60, which is the number of protons that gives this atom its particular properties. In the lower field is the flag of Austria where this element was uncovered by Carl Auer von Welsbach.
Thus if you know the abbreviation for North Dakota, you now have a fun way of learning about element 60. For comparison, the flag of North Dakota is to the left. It is nearly a federal seal flag, since imagery indicates a strong symbolism for the federal government.