I found this picture of a Joule Thief on this forum, but it requires login, so I’m going to post it here. This sure won’t take a prize for beauty, to put it mildly, but if it works, that’s what counts. I’m wondering how that coil can work with all those weird wires around it. I think it’s a mystery coil. Also, it’s odd that none of the parts seem to go through the holes where parts normally go. Another oddity.