Does it 'move' you?

The idea of a moving exhibit came to mind after visiting the London Transport Museum. In a previous post, I mentioned just how overwhelming and stressful this visit was due to the large amount of children and the difficulty of being able to walk through the museum. After exiting the exhibitions, I made my way to the cafe - I then delved into my sketchbook with a panini and a glass of wine. It was a simple joy of not being surrounded by the smell of diapers and sounds of whining.

Sketches came about and it became clear what I wanted to do: allow my posters and imagery to be moveable, like that on a train track - moveable in a sense that the viewer is able to put my pieces together like a puzzle. I enjoy the fact that the control is in the hands of the viewer, the audience and not so much myself. I can and will set it up in a way where they are able to play with such imagery and find meanings amongst themselves.

Creating such imagery and 'puzzle pieces' is not so difficult. In my mind, I need to know how the physics will work: find a railing system first, then modify such pieces.

One trip to IKEA, I came across a shower curtain railing. This shower curtain railing is meant to be hung from the ceiling, but why wouldn't it work by being attached to a vertical wall?

After long hours of simply figuring out how to assemble said shower curtain:
(Why IKEA instructions have not gotten easier over time is beyond me...)

I assembled my shower curtain rail, now to attach a mock poster. I know the the images/posters used in my exhibit will be printed on a thick foam core, so fear of piercing through a simple foam board from the student store is not a worry at the moment: just make sure it sticks...and it moves from left to right.

It works. Kind of. Not really actually. Yes said poster board moves from left to right, but it squeaks and doesn't move smoothly. I assume this to be from the fact that the tracks are meant to be hanging from the ceiling and not from a vertical stand point. Without the board, the tracks are smooth - due to no weight. Of course the board is somewhat flimsy, something I figured could be fixed with a double railing:

But I doubt that would take the squeakiness out of the movement.

I tried, and it's not successful at this point.

New ideas: looking into railings found in drawers, railings found for large scale objects such as televisions, etc. I know there are rail systems intended to be attached to a vertical wall, now to just find such at a reasonable cost and are easily moveable. No squeaks please.