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Electric heating source to boil water in a lightbulb?

Im for some sort of heating source to boil water in a lightbulb. I initially was thing an immersion heater but thy are too large.  which has lead me to thinking along the lines of building an external coil to do so.   Would this feasibly work? And if so how would i go about doing so? Any input would be a great help or any other ideas on how to go about heating are welcome as well