banjo buildoff... YUP , I popped an aged skin tambourine in a double wide SW body , and used a dollar store drip plate as the screen . etc etc …
BUT , it is more than just a tambourine in a guitar body , I retro-fitted the skin and tambourine body to act as those toy kids echo microphones , with the addition of proper gauge spring , pulling tension directly from the skin , then to the body . To make like an echo / reverb tank . it works very well . will even echo your voice like the toy mic does .
It’s like a national , a banjo , and a swamp witch had an orgy and this popped out . ;-)