Flashing Spark Plug Wires

[Titleist16]

I was watching an episode of American Chopper and I saw on one of their bikes they had flashing spark plug wires. I was wondering if anybody else has seen these. Do they make these wires for cars, specifically for the 6cyl?

 

['61 Draggin Wagon]

As I understand it, they're glass,neon tubes that flash when the spark current flows through them. I'd love to have a set, but I think they're pretty expensive. I can't remember where I saw them advertised.....
Darryl

 

[Anonymous]

You can find them all the time on eBay.

 

[LaGrasta]

I've been planning on buying a set. I've done pricing and JCWhitney is the cheapest. Look them up as "nodes".