make your own vintage style sign

We have this huge piece of wood hanging on the wall in our living room just waiting for us to get around to painting it.  My husband, Jonah (is that the first time I've mentioned him here by name?) is creating a nifty design (you'll just have to keep checking back to see it!) that we will paint on the sign. We have been playing with different ideas as to the best/easiest way to paint the sign and I think this might be a good option from justsomethingimade.com