The Best Use of the Biebel Soundboad Contest. Endo Rosales pairs up Biebel and Dynamite. They don't have to all be soundboard mash ups. We'll take some good ol' fashion prank calls too. There are still four of these singed Biebel boards to give away. Read the post from 8/23 for the details. Limited to the continental U.S. Send your entries here.