From time to time, videos of my designs appear on youtub. Some ask for permission in advance, most (like this one) don’t. There’s not a lot to be done, without wasting time and energy.

However, this is a pretty festive rendition of my A4 rhombic unit, so I hope you will have a go if it’s new to you.

Then, in the words of the legendary John Boy Walton, you can hang Santa by the balls on the Christmas tree…