Use our free 6 x 11 horizontal rectangle postcard design templates to print custom postcards in any color you’d like: orange, green, blue, yellow, black, violet, brown, grey – any color under the sun! Our free online postcard maker puts you in the driver’s seat, making it easier than ever to craft your own custom 6 x 11 postcard design using our free templates as a base. View all of our postcard products on our postcard category page. Already have artwork? Upload it on our postcard product page and get an instant price quote!