Moe Kunkle founded the Rocket Girls Junior Roller Derby League (currently known as Rocket City Rebels Junior Roller Derby).  He was an active part of the league until he lost his battle with depression in 2016.   The junior league issued these patches to everyone in the league, both adults and juniors.  The junior version of hte patch has a green font and border for their team color.  The "seniors" (adults? not sure) received the same patch in blue.  All teams skate with these patches on their uniforms in honor of his contributions to the league and in memory of his passing.