This is called a Swedish flame, AKA one-log fire. Make your cuts like you're cutting cake. Leave about 6 inches at the base. Throw some fuel oil in there (about a cap full) or just some kindling. Will burn up to hours. I've even seen people cook on these.
DIY Homemade Sun Jar: Create your own solar lights that store energy during the day and release light at night. These little lamps are adorable, easy to make and cheap to purchase; everything a DIY project should be.