can send an instant, like a postcard?

I have a picture of my camera I thought make a nice postcard. I can ¿to addresses in the back and seal it? Has anyone done this and no mail?

Yes I did, but before you cut some cardboard to fit and closely linked with glue stick to the image. (Just to be stronger and more capable of handling the mail is handled crudely.) So I went over, put a stamp on it … and sent him my friend makes his way.It safe, and really liked it.