Radio Scouting is an international activity, and the World Organization of the Scout Movement (WOSM) has patches and pins for it. I love the classic design, and I also love the price, with the current exchange rate.
The WOSM Radio Scouting emblem looks a lot like the World Scout Crest, but with a radio twist. It has the same purple background, but instead of the circling rope, it has dots, like Morse Code. The fleur-de-lis is at the bottom, and the center is a globe with headphones, a neckerchief, and some lightning bolt lines. It sounds complicated, but it says “Scouts on the radio around the world” without using words.
Right now (late 2016), the cloth badge (patch) is $1.29 (£1.04) and the metal badge (pin) is $1.81 (£1.46). You can work out the shipping cost yourself, but I think it is worth it to wear the world-wide symbol of Radio Scouting.