History Lesson Novelty Metal License Plate. Offering our unique license plate designs in a 12" Standard Automotive License Plate, 7" Motorcycle/ATV Plate, 6" Bike Plate, and 4" Miniature License Plate. The 12" x 6" License Plate is made out of a .032 grade aluminum and the other sizes are made out of a .025 grade aluminum, which make them lightweight and durable. All license plates will have pre-drilled holes making these decorative license plates easy to display. Choose between the sizes offered or add both to your cart to show off your style and decorations anywhere! These items are proudly made here in the USA. Check out our other different sizes with the same artwork on them in our Key Chains, Rectangle Magnets, and Dog Tag Necklaces.