Drawing of a cartoon DJ + FM radio text for t-shirt printing

We had a fairly deeply technical issue in our company, with a component resonating at a particular frequency - 237 Hz. I'd like to make a t-shirt for the team, as appreciation for the hard work it took to fix it. I've thought of an "FM radio station DJ" type image, with a cartoon character, with the text captions "237Hz F.S.O.C. FM", "HAKUNA NET", all in a fun, colorful graphic for printing in the front of a t-shirt. If the character can be based on a real person, that would be cool, but a random, non-descript person would work too. Our project is in Africa, so it would be great if "african colors" were used (reds, yellows, ocres, green, etc.). Samples shown are for reference as to the four-letter radio station codes used in the past (F.S.O.C. in our case), and "african colors".