Drum heads...my wife got me the Planet Barbecue book for Christmas. I did a quick scan and found my next project. Only problem is that I will have to officially change my name to the Schwenkermeister!! I've got enough spare parts lying around to fab up a German Schwenker Grill to go along with my UDS. I'm going to do it right by adding the airfoils below the grate to get constant rotation from my fire pit in the backyard. I've included a pic below of what a basic one looks like. Seems like the perfect portable grill/smoker.