I thought I’d share this as a good solution for a budgie perch. Bobby was always flying to the top of our television which, of course ended up very messy. My solution was to use a microphone stand as you can see in the photo. It can be raised to any height and has proved to be a hit with him.
This microphone stand has a telescopic boom arm, so the perch also has various thicknesses. This microphone stand has a powder coating so is very slightly rough and not completely smooth (you could cover it with something to make it more comfortable but this one seems to be fine as is as an extra perch)
The stand in the pic is a bit more expensive, but you could use something like this: