A while ago we looked at a rather impressive Instructable on how to make a mad scientist light – and it looked very fetching indeed! But I where to get appropriate bulbs – a few people made suggestions after that post and I looked into it myself, so we’ve got a couple of places that might take your fancy:

Tube Depot has some rather impressive, but also distressingly pricey antique style bulbs at about $18 a pop.

Signals has a smaller selection that I’ve seen, but the prices range more too – $16 to $28!

And Lightbulbs Direct in the UK will sell a squirrel cage style bulb for approx £11 each.

[Edit – Oops!  Missed one from Mr Adams – Walgreens does some too, though not as pretty, much cheaper at $7]

Thanks to both Mr Bowden and Mr Hildebrandt for finding some of these – if anyone knows other places to find these rather handsome lightgivers, a note in the comments would be most helpful!