I picked up a cheap Airfix airfield control tower kit at a Toy&Tain fair a while back. I built it recently an left it for a while to let all the glue go off before I did the hand rails. I was going to use thread but after a try this was way too fiddly, I did consider some thin plastic rod but hadn't got any so I went with some thin wire - fixing it with super glue..
few more bits of wire to add then I can get it painted...