Lost/broken windows and headlights

Hey, its me again. This seems like it would be a hard question to answer, but how could you replace windows and headlights/tailights on a model car? Without having to order, is there anything out there that I could use? I've tried using part of the plastic bag that the model comes in as a substitute, but it looks like crap.

Thank You

Found this in the How-to section:
http://www.automotiveforums.com/vbulletin/showthread.php?t=514642

Have a looksie there... there is a lot to learn from that section alone.
HTH,
Steve

If yuo read through this thread (http://www.automotiveforums.com/vbulletin/showthread.php?t=680549), you will find (in 2 places) how I went about making some new lights which might be useful for you also. HTH