A pack of 2 canvas from Hobby Lobby is 7.99 ( use the online 40% off coupon for this part) and then grab some acrylic paints. We used Anita's as it was only $.79 a bottle) and make sure that you have any sort of tools you need like paintbrushes. Total we spent 30 and had supplies left over for future craftiness.
Use the internet as inspiration for your art. I wanted the dandelion blowing in the wind. My fiancé went way more difficult and made his own stencil of the world. It was my idea to add the John 3:16 verse as a border. They turned out great and we had a wonderful afternoon together making them. If you're feeling a bit more social, do what my big sis does and invite friends over for a painting party!