I recently came across the website Postcrosing. The site connects people from all over the world so they can send and receive postcards from all over the world. I, of course, decided that I needed to make my postcards! Here are my first 5 cards.
The green and purple ones are done with Sharpies on index card weight paper. The other two are black sharpie on watercolor paper that I dressed up with... what else but watercolors prior to drawing,
Check out Postcrossing's website HERE!