There's going to be a fair number of signals on the railway. choosing wisely seems appropriate!
I've obtained a few signals to try out. As you can see, they are quite different.....
- The one on the left is a Berko model, and is readily available in the UK. An excellent model, to scale and nicely finished. But expensive at £15 per mast.
- The middle one is a plastic moulding, obtained from ebay from an overseas supplier. It just looks "wrong".
- The one on the right is metallic. I got 6 of them for around £16 (again overseas on ebay). A little larger than the UK sourced one, so not quite to scale; but a sixth of the price. Good enough?