I took an old bulb, removed all the glass, leaving just the metal base, epoxied it to a 6" length of wooden dowel... viola, bullet signal guts remover tool!
stick it in the socket, twist to lock, pull and wiggle, and out comes the insides. (man, if that sentence isn't laced with innuendoes

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I made one for the signgle filament and one for the dual filament sockets