Paint removal from turn signal lense?

A friend taught me a trick for removing paint or chrome from plastic car models. On chrome pieces that you want to remove the chrome from the plastic, put it in a Tupperware container, cover with Windex and seal it up for a day or two. Chrome will come right off without hurting the plastic. For paint, I spray it with Easy Off and seal it in a Tupperware container overnight. Next day it comes off clean like you used paint stripper.

Caution though,... That is on polystyrene car models, not the red or amber polycarbonate commonly used on parking and tail light lenses. If you have any broken lens around, I'd try it on them before trying it on your real parts.