Well, not really, but I found some spherical clinkers during my cleanout today. I've been getting these since burning TSC pellets. The pellets have great heat, but are very very ashy, and leave these little gifts. Fortunately, my stove can handle the ash easily, and the spherical clinkers block the airflow less than some others I've had shaped like little briquettes. Maybe I'll take them outside and see how far I can scatter them with a baseball bat...