I found this tutorial on how to make a mini greenhouse from lightbulbs via art for housewives.
Somehow I don’t know how to cram the big plant into the small light.
;-))
Perhaps I better stick to the lightbulb window vase ;-)
Links:
At instructables: Lightbulb Green House
via art for housewives
via Tutorial: come costruire una minuscola serra in una lampadina (italian)
Here at unikatissima: Light Bulb Window Vase