PlateDepot.com and USPlates.com sell old U.S. state licence plates. EBay sellers also offer plates under the category of Vintage License Plates. Buyers seeking old state license plates may also shop at yard sales, estate sales and junkyards, or write to a state's Department of Motor Vehicles requesting sample plates.
As of 2015, PlateDepot.com allows users to shop for plates by state, as well as search for plates costing $1, $2 or $3. USPlates.com allows users to shop for plates by state, but also has Specialty Plate and Triple Number categories, as well as complete license plate sets of all 50 states. Many individual vintage license plates sell for $10 or less. Rare or desirable license plates may cost a bit more.