I was browsing a new Edmond Scientific catalog and found something that might be useful in theatrical production. Its called live wire and is a "flexible glowing wire". It reports to look like neon, and includes a "live pak unit" that has a blinking function with a speed controller. while $75 for 20' still isn't exactly cheap, it is much more economical than neoflex, or the like.
I also liked the Moppels - LED lights with flexible handles so you can arrange them into any position.
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