Yank,, good idea,,, I had one I made years ago and lost track of it,,, I used a power box for a electric train (don't remember what they are called,, it's like a transformer/reducer thingy ) they have 2 studs with nuts and you just take a heating element out of an old electric heater and wire the ends to the studs and turn it on, glows bright red
you can make a spinner out of wood with a notch in the end to accept the knock..............If I can find it I will get a pic.
Way cheaper than a factory feather burner
wvflintknapper