I have built a nose cone for the dirigibles. It turned into quite a mini-project by itself.
These were very fiddly to line up the components with the rings, but a glass of wine helps.
Also, AFTER adding the last small ring, I found some interesting looking plastic desert pots that may fit on the front, but are about 4mm wider...
I am moving on to the working out how to insert the balloon when it has been covered in fabric, it might be a bit tight. I may also be extending the balloon a bit, so it may get more complicated. I also need to get the kids to drink two more 2 litre bottles of something so I can join two bottles together.