Here are two ukuleles made with some parts purchased from C.B. Gitty and found objects. The Simpsons uke makes use of a Simpsons Trivia Game box for the body. A large tin box with such wonderful graphics like this one is just begging to be repurposed. Visually, this is my favorite uke build so far.
See and hear the uke demos on YouTube: https://youtu.be/3Dg_PZfXg_E
The neck is attached to an interior support structure which I like to call "the back bone". I build this into all of my ukes to ensure body integrity.
I found this reproduction of a vintage lunch box at my favorite re-sale shop. This uke has a fun look about it and makes a particularly nice sound.