Download and print the poster (18×24) at any inexpensive local printer, from Staples to Costco. Also included in your package is a download for the license plates. Choose your state, then customize a plate for each child attending the party by typing in their name on the PDF. Then you can print them off using a home printer. They will print three per sheet of 8.5×11 paper – all you have to do is cut them out and you’re ready to roll.