Penny red

With the cost of energy as it is, we decided to put a curtain up at the front door using a portiere rail.
There’s a posh bloke in the Cotswolds who sells his Cosidor rails for two hundred quid. I like his idea but not his price so I’m making my own.
Current cost is 22 quid and a couple of old pennies that I annealed and which my dad dug out of the ground 50 odd years ago.