Curtain rail end

This is basically a part I came up with after being frustrated in not being able to find a replacement for the broken curtain rail end piece.
It's my first part, and it worked for me, that's all that really counts.

UPDATE!

I've added one with curves - It also has a narrower section to allow for some differences I have found in some curtain rails.

And as a side note I have now found a place to buy proper one, but you know what I'll be doing anyway - making my own.