I'm always looking for flexible materials for my kinetic interactive installations. Heres a LED substitute for neon lights with the added property of being able to change shape. Mule Lighting has developed a product that looks like traditional neon but is much more versatile.

PDF The uniform and super-bright light output is achieved through a proprietary optical maximization technique which is completely sealed and impervious to shock and vibration.LED-FLEX is suitable for wet locations and can withstand extreme temperatures. via transmaterial