I have just came up with the idea of building a stage lighting gantry out of straight/curved roller coaster track (as seen on 70922 Joker Manor for example) https://brickset.com/parts/6210815/rail-13x13-1-4-circle-w-3-2-shaft
I wonder if anything with a 'clip holder' (e.g. 4085 https://brickset.com/parts/design-4085) can attach to the central cross-members between the rails?