Wanted to be able to add some edge artwork (Advertisement) to my license plate but my printer will not print large enough to border the entire standard automobile license plate. So, made these to bolt into one mount hole with a notched base to hook on the edge of the plate so that it will not rotate from position. Since the base is uneven, printing with support material of some kind is required. Since that face is hidden, the support material doesn't need to be too dense. With Repetier set for a 5mm support spacing and it works fine.