Hanger 9 make one similar to that. instead of a "dummy glowplug" for a connecter it has an 1/8 inch? jack. i looks like a headphones jack. it also comes with a wire with the male jack on one end and a connecter that you attach your glow igniter to. i just leave the wire adapter attached to my igniter and just slide the jack in or out on the heli. hard to explain. but is exactly the same as the one described by heli-john exept is uses a headphone lack instead of RCA jacks, and its not home made. have yet to have any trouble with it.

here it is....
[link=http://horizon.hobbyshopnow.com/products/description.asp?prod=HAN3025]Hangeer 9 remote glow clip[/link]