Could you make a lightbulb out of plastic?

Plastic can replace glass in a lot of places. Why not lightbulbs, especially flourescents?

A Fluorescent bulb has a pretty good vacuum inside, around 0.15 mm of mercury, so a thin plastic tube would probably collapse over time. You’d also have problems with the plastic outgassing molecules of monomer into the cavity, where they’d react with the mercury vapor.
A plastic, argon filled, incandescent lamp might last a while, if you made the bulb big enough to dissipate heat without melting.

Instead of fluorescents, why not use high intensity LEDs? From this page