Xemu Xeno alien lamp bulb replacement?

[Avery Bachman]

I dug my old Xemu Xeno alien lamp out of storage and the light bulb is burned out. But as the people in the same boat as me know, changing planes at O'Hare airport seems easier than finding a replacement bulb for this thing. A few posts floating around the internet about this topic lead to dead ends...can anybody point me in the right direction for replacing the bulb for my unit?