Postcard Printing

I have been living in the United States for over three years now yet I still did not able to send postcard to any of my family and friends. They have been asking me to send one especially my neighbors who lived in the province, they wanted to see how my place looks like. Postcard is quite expensive if you have to buy in the store so obviously I need to find a printing for less so I can save money. I need to print at least 50 postcards, I have many friends and neighbors who would gladly received a postcard especially my family. If only my relatives and friends in the province own a computer I would have just sent it through mail, it is less work and a lot cheaper.