This is a pee can or a thunder jug. This was used on cold, icy, or rainy nights for when you didn't go to the outhouse. You kept it clean and ready under the bed for emergencies, babies and old folks. That is why the nut is called a "puhcahn" not a pee-can!
In some parts of southern Appalachia, green twigs from the Eastern redbud are used as seasoning for wild game such as venison and opossum. Because of this, in these mountain areas the Eastern redbud is sometimes known as the spicewood tree.
In this delightful book on Southern Appalachian cooking, Dabney not only records the recipes, but chronicles the life of the people who have raised corn and hunted rabbits and brewed moonshine for hundreds of years in our mountain region. You can read my review here: http://www.mountainx.com/article/7200/From-whiskey-to-whistle-pig-pie
I can see an easy DIY project for this piece of artwork. There is no tutorial since this piece is for sale. However, I think you can easily recreate it by painting a board, sanding around the edges, painting a wire and 2 love birds. Or....find silhouettes of birds and use your cutter (Cricut or Shilhouette, etc) to make a stencil or make a slide decal. Better yet...find an artsy friend who could paint the birds in less than 5 minutes. Happy creating!