Flexible tube for threading through transparent round bricks I'm planning on doing a replica of the Belaggio fountains. I can't find it now, but I remember somewhere I saw someone do a build where they threaded a transparent tube through some 1 x 1 round bricks to make a &quot;bendy&quot; transparent column. I'd like to use this technique to make some moving fountain sprays.  Does anyone know anything about such a technique, and what parts I need?
If I'm understanding you correctly, you'll need 1x1 round bricks and something bar-sized and flexible to hold them together.
Alex pointed out that the hoses typically used for this sort of thing aren't available in trans-clear. Pneumatic tubing has been produced in trans-clear, so it could be an option, but you'd need a different design, as pneumatic tubing will not fit through an open stud.
You could use fiber optic cable:

I tried stringing some transparent 1x1 round bricks on it, and I think it creates the look that you are going for: