Kansas License Plates
Until 2009, Kansas allowed vanities to be duplicated among their 105 counties, meaning up to 105 different people could have any given vanity plate. This was possible because the two-letter county designation sticker on the plate was actually part of the registration. Someone from Shawnee County with "BOB" on his plate would actually have SN BOB on his registration, yet his plate would look identical to the "BOB" plates in any other county except for the small SN county sticker. This practice was stopped in 2010, after which point only one vanity plate with any given combination was allowed in the whole state. In every case where duplicates already exist, only the person who had that combination the longest was allowed to keep it.