Can anyone recommend either a service that sells wall maps based on OpenStreetMap or a program that will allow me to make a custom wall map that I can send to a print company (I want something larger than a normal printer can handle)? I'm looking for or would like to make two different maps. One of the world where each country is a different color and an other one of United States where each state is a different color. I'm not looking for a print of a city guide or a water resistant map which there clear links to services that claim to do that on the Wiki (I did look).

Can anyone recommend either a service that sells wall maps based on OpenStreetMap or a program that will allow me to make a custom wall map that I can send to a print company (I want something larger than a normal printer can handle)? I'm looking for or would like to make two different maps. One of the world where each country is a different color and an other one of United States where each state is a different color. I'm not looking for a print of a city guide or a water resistant map which there clear links to services that claim to do that on the Wiki (I did look).