Molds

http://www.geocities.com/placidwarrior_1/Ion_eyelids.html

I made my own eyelids, however i'm not sure if its the best way by using the light for every set unless u get yourself a spare set of lights.   I tried plaster of paris...not the greatest, however i had one guy tell me he had moulds made from truck bed liner spray. He would send in his project and they would put a release agent on or whatever so nothing stuck, then they would spray on a few layers making it nice and thick, then they would add pieces of stick or something to give it some bulk and then spray some more and just build up a decent mould that way...sounds like something i would try if i had a mass order but when u sell only a few here and there its not a big deal to just use the lights (just remember to mask well).

In my link i have attachment points but i also made a set that requires double sided adhesive. I did a set of rear light covers for my car using 3M tape which still seem to be holding just fine.