I recently opened a Harlow & Thistle Etsy store that sells custom printable invitations and party supplies. Here is a sampling of my Halloween items. I customize it with your information (name, dates, locations and photography) and then I send you final digital files ready for print.

You can print them at home, or as many of my customers have chosen, print them as photographs at any photo centre (ie Walmart for 17 cents each). Print as many as you like or send them via email.
Much more economical than other options.