Find/make frosted glass/plastic tubing
It's easy enough to find perspex tubing on ebay, but it's all clear - I really want something translucent, so that the LEDs give a glow of light, rather than a point.
Is there something I can coat glass or perspex with to create this effect? Or am I searching for the wrong words? I sometimes see the fluorescent tubes referred to having a satin finish, but that hasn't helped